diff --git a/README.md b/README.md
index a0898d77d..3bb66f6ef 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Rocket Pool - A next generation Ethereum proof of stake (PoS) infrastructure service and pool [![Build Status](https://travis-ci.org/rocket-pool/rocketpool.svg?branch=master)](https://travis-ci.org/rocket-pool/rocketpool)
 
-*NOTE: The current version of Rocket Pool requires the latest [ganache-cli@v6.9.1](https://github.com/trufflesuite/ganache-cli), [truffle@v5.1.22](https://github.com/trufflesuite/truffle), and [NodeJS@12.18.3 LTS](https://nodejs.org/en/download/package-manager/) or greater to run locally.
+*NOTE: The current version of Rocket Pool requires the latest [ganache-cli@v6.12.1](https://github.com/trufflesuite/ganache-cli), [truffle@v5.1.51](https://github.com/trufflesuite/truffle), and [NodeJS@12.18.3 LTS](https://nodejs.org/en/download/package-manager/) or greater to run locally.
 
 <p align="center">
   <img src="https://raw.githubusercontent.com/rocket-pool/rocketpool/master/images/logo.png?raw=true" alt="Rocket Pool - Next Generation Decentralised Ethereum Proof-of-Stake (PoS) Infrastructure Service and Pool" width="500" />
diff --git a/package-lock.json b/package-lock.json
index 8daac05da..83490cd22 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -319,6 +319,12 @@
       "dev": true,
       "optional": true
     },
+    "ansi-colors": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-4.1.1.tgz",
+      "integrity": "sha512-JoX0apGbHaUJBNl6yF+p6JAFYZ666/hhCGKN5t9QFjbJQKUU/g8MNbFDbvfrgKXvI1QpZplPOnwIo99lX/AAmA==",
+      "dev": true
+    },
     "ansi-escapes": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
@@ -337,6 +343,16 @@
         "color-convert": "^1.9.0"
       }
     },
+    "anymatch": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.1.tgz",
+      "integrity": "sha512-mM8522psRCqzV+6LhomX5wgp25YVibjh8Wj23I5RPkPppSVSjyKD2A2mBJmWGa+KN7f2D6LNh9jkBCeyLktzjg==",
+      "dev": true,
+      "requires": {
+        "normalize-path": "^3.0.0",
+        "picomatch": "^2.0.4"
+      }
+    },
     "app-module-path": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/app-module-path/-/app-module-path-2.2.0.tgz",
@@ -395,6 +411,18 @@
       "resolved": "https://registry.npmjs.org/array-uniq/-/array-uniq-1.0.3.tgz",
       "integrity": "sha1-r2rId6Jcx/dOBYiUdThY39sk/bY="
     },
+    "array.prototype.map": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/array.prototype.map/-/array.prototype.map-1.0.2.tgz",
+      "integrity": "sha512-Az3OYxgsa1g7xDYp86l0nnN4bcmuEITGe1rbdEBVkrqkzMgDcbdQ2R7r41pNzti+4NMces3H8gMmuioZUilLgw==",
+      "dev": true,
+      "requires": {
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.17.0-next.1",
+        "es-array-method-boxes-properly": "^1.0.0",
+        "is-string": "^1.0.4"
+      }
+    },
     "arrify": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
@@ -1344,6 +1372,12 @@
       "from": "git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2",
       "dev": true
     },
+    "binary-extensions": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.1.0.tgz",
+      "integrity": "sha512-1Yj8h9Q+QDF5FzhMs/c9+6UntbD5MkRfRwac8DoEm9ZfUBZ7tZ55YcGVAzEe4bXsdQHEk+s9S5wsOKVdZrw0tQ==",
+      "dev": true
+    },
     "bindings": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
@@ -1398,6 +1432,15 @@
         "concat-map": "0.0.1"
       }
     },
+    "braces": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
+      "integrity": "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==",
+      "dev": true,
+      "requires": {
+        "fill-range": "^7.0.1"
+      }
+    },
     "brorand": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
@@ -1619,6 +1662,16 @@
         }
       }
     },
+    "call-bind": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.0.tgz",
+      "integrity": "sha512-AEXsYIyyDY3MCzbwdhzG3Jx1R0J2wetQyUynn6dYHAO+bg8l1k7jwZtRv4ryryFs7EP+NDlikJlVe59jr0cM2w==",
+      "dev": true,
+      "requires": {
+        "function-bind": "^1.1.1",
+        "get-intrinsic": "^1.0.0"
+      }
+    },
     "camelcase": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
@@ -1666,6 +1719,42 @@
       "resolved": "https://registry.npmjs.org/chardet/-/chardet-0.4.2.tgz",
       "integrity": "sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I="
     },
+    "chokidar": {
+      "version": "3.4.2",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.4.2.tgz",
+      "integrity": "sha512-IZHaDeBeI+sZJRX7lGcXsdzgvZqKv6sECqsbErJA4mHWfpRrD8B97kSFN4cQz6nGBGiuFia1MKR4d6c1o8Cv7A==",
+      "dev": true,
+      "requires": {
+        "anymatch": "~3.1.1",
+        "braces": "~3.0.2",
+        "fsevents": "~2.1.2",
+        "glob-parent": "~5.1.0",
+        "is-binary-path": "~2.1.0",
+        "is-glob": "~4.0.1",
+        "normalize-path": "~3.0.0",
+        "readdirp": "~3.4.0"
+      },
+      "dependencies": {
+        "glob-parent": {
+          "version": "5.1.1",
+          "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.1.tgz",
+          "integrity": "sha512-FnI+VGOpnlGHWZxthPGR+QhR78fuiK0sNLkHQv+bL9fQi57lNNdquIbna/WrfROrolq8GK5Ek6BiMwqL/voRYQ==",
+          "dev": true,
+          "requires": {
+            "is-glob": "^4.0.1"
+          }
+        },
+        "is-glob": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-4.0.1.tgz",
+          "integrity": "sha512-5G0tKtBTFImOqDnLB2hG6Bp2qcKEFduo4tZu9MT/H6NQv/ghhy30o55ufafxJ/LdH79LLs2Kfrn85TLKyA7BUg==",
+          "dev": true,
+          "requires": {
+            "is-extglob": "^2.1.1"
+          }
+        }
+      }
+    },
     "chownr": {
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz",
@@ -2461,6 +2550,15 @@
       "integrity": "sha512-0ISdNousHvZT2EiFlZeZAHBUvSxmKswVCEf8hW7KWgG4a8MVEu/3Vb6uWYozkjylyCxe0JBIiRB1jV45S70WVQ==",
       "dev": true
     },
+    "define-properties": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
+      "integrity": "sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==",
+      "dev": true,
+      "requires": {
+        "object-keys": "^1.0.12"
+      }
+    },
     "delayed-stream": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
@@ -2615,6 +2713,12 @@
         "minimalistic-crypto-utils": "^1.0.0"
       }
     },
+    "emoji-regex": {
+      "version": "7.0.3",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
+      "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA==",
+      "dev": true
+    },
     "encodeurl": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
@@ -2638,6 +2742,79 @@
         "is-arrayish": "^0.2.1"
       }
     },
+    "es-abstract": {
+      "version": "1.17.7",
+      "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.17.7.tgz",
+      "integrity": "sha512-VBl/gnfcJ7OercKA9MVaegWsBHFjV492syMudcnQZvt/Dw8ezpcOHYZXa/J96O8vx+g4x65YKhxOwDUh63aS5g==",
+      "dev": true,
+      "requires": {
+        "es-to-primitive": "^1.2.1",
+        "function-bind": "^1.1.1",
+        "has": "^1.0.3",
+        "has-symbols": "^1.0.1",
+        "is-callable": "^1.2.2",
+        "is-regex": "^1.1.1",
+        "object-inspect": "^1.8.0",
+        "object-keys": "^1.1.1",
+        "object.assign": "^4.1.1",
+        "string.prototype.trimend": "^1.0.1",
+        "string.prototype.trimstart": "^1.0.1"
+      },
+      "dependencies": {
+        "object.assign": {
+          "version": "4.1.2",
+          "resolved": "https://registry.npmjs.org/object.assign/-/object.assign-4.1.2.tgz",
+          "integrity": "sha512-ixT2L5THXsApyiUPYKmW+2EHpXXe5Ii3M+f4e+aJFAHao5amFRW6J0OO6c/LU8Be47utCx2GL89hxGB6XSmKuQ==",
+          "dev": true,
+          "requires": {
+            "call-bind": "^1.0.0",
+            "define-properties": "^1.1.3",
+            "has-symbols": "^1.0.1",
+            "object-keys": "^1.1.1"
+          }
+        }
+      }
+    },
+    "es-array-method-boxes-properly": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/es-array-method-boxes-properly/-/es-array-method-boxes-properly-1.0.0.tgz",
+      "integrity": "sha512-wd6JXUmyHmt8T5a2xreUwKcGPq6f1f+WwIJkijUqiGcJz1qqnZgP6XIK+QyIWU5lT7imeNxUll48bziG+TSYcA==",
+      "dev": true
+    },
+    "es-get-iterator": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/es-get-iterator/-/es-get-iterator-1.1.0.tgz",
+      "integrity": "sha512-UfrmHuWQlNMTs35e1ypnvikg6jCz3SK8v8ImvmDsh36fCVUR1MqoFDiyn0/k52C8NqO3YsO8Oe0azeesNuqSsQ==",
+      "dev": true,
+      "requires": {
+        "es-abstract": "^1.17.4",
+        "has-symbols": "^1.0.1",
+        "is-arguments": "^1.0.4",
+        "is-map": "^2.0.1",
+        "is-set": "^2.0.1",
+        "is-string": "^1.0.5",
+        "isarray": "^2.0.5"
+      },
+      "dependencies": {
+        "isarray": {
+          "version": "2.0.5",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.5.tgz",
+          "integrity": "sha512-xHjhDr3cNBK0BzdUJSPXZntQUx/mwMS5Rw4A7lPJ90XGAO6ISP/ePDNuo0vhqOZU+UD5JoodwCAAoZQd3FeAKw==",
+          "dev": true
+        }
+      }
+    },
+    "es-to-primitive": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/es-to-primitive/-/es-to-primitive-1.2.1.tgz",
+      "integrity": "sha512-QCOllgZJtaUo9miYBcLChTUaHNjJF3PYs1VidD7AwiEj1kYxKeQTctLAezAOH5ZKRH0g2IgPn6KwB4IT8iRpvA==",
+      "dev": true,
+      "requires": {
+        "is-callable": "^1.1.4",
+        "is-date-object": "^1.0.1",
+        "is-symbol": "^1.0.2"
+      }
+    },
     "es5-ext": {
       "version": "0.10.53",
       "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.53.tgz",
@@ -3074,6 +3251,15 @@
       "resolved": "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz",
       "integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw=="
     },
+    "fill-range": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
+      "integrity": "sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==",
+      "dev": true,
+      "requires": {
+        "to-regex-range": "^5.0.1"
+      }
+    },
     "finalhandler": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.2.tgz",
@@ -3097,6 +3283,15 @@
         "locate-path": "^2.0.0"
       }
     },
+    "flat": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/flat/-/flat-4.1.1.tgz",
+      "integrity": "sha512-FmTtBsHskrU6FJ2VxCnsDb84wu9zhmO3cUX2kGFb5tuwhfXxGciiT0oRY+cck35QmG+NmGh5eLz6lLCpWTqwpA==",
+      "dev": true,
+      "requires": {
+        "is-buffer": "~2.0.3"
+      }
+    },
     "forever-agent": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
@@ -3150,17 +3345,59 @@
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
       "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
     },
+    "fsevents": {
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.1.3.tgz",
+      "integrity": "sha512-Auw9a4AxqWpa9GUfj370BMPzzyncfBABW8Mab7BGWBYDj4Isgq+cDKtx0i6u9jcX9pQDnswsaaOTgTmA5pEjuQ==",
+      "dev": true,
+      "optional": true
+    },
+    "function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==",
+      "dev": true
+    },
     "ganache-cli": {
-      "version": "6.9.1",
-      "resolved": "https://registry.npmjs.org/ganache-cli/-/ganache-cli-6.9.1.tgz",
-      "integrity": "sha512-VPBumkNUZzXDRQwVOby5YyQpd5t1clkr06xMgB28lZdEIn5ht1GMwUskOTFOAxdkQ4J12IWP0gdeacVRGowqbA==",
+      "version": "6.12.1",
+      "resolved": "https://registry.npmjs.org/ganache-cli/-/ganache-cli-6.12.1.tgz",
+      "integrity": "sha512-zoefZLQpQyEJH9jgtVYgM+ENFLAC9iwys07IDCsju2Ieq9KSTLH89RxSP4bhizXKV/h/+qaWpfyCBGWnBfqgIQ==",
       "dev": true,
       "requires": {
-        "ethereumjs-util": "6.1.0",
+        "ethereumjs-util": "6.2.1",
         "source-map-support": "0.5.12",
         "yargs": "13.2.4"
       },
       "dependencies": {
+        "@types/bn.js": {
+          "version": "4.11.6",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "@types/node": "*"
+          }
+        },
+        "@types/node": {
+          "version": "14.11.2",
+          "bundled": true,
+          "dev": true
+        },
+        "@types/pbkdf2": {
+          "version": "3.1.0",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "@types/node": "*"
+          }
+        },
+        "@types/secp256k1": {
+          "version": "4.0.1",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "@types/node": "*"
+          }
+        },
         "ansi-regex": {
           "version": "4.1.0",
           "bundled": true,
@@ -3174,24 +3411,21 @@
             "color-convert": "^1.9.0"
           }
         },
-        "bindings": {
-          "version": "1.5.0",
+        "base-x": {
+          "version": "3.0.8",
           "bundled": true,
           "dev": true,
           "requires": {
-            "file-uri-to-path": "1.0.0"
+            "safe-buffer": "^5.0.1"
           }
         },
-        "bip66": {
-          "version": "1.1.5",
+        "blakejs": {
+          "version": "1.1.0",
           "bundled": true,
-          "dev": true,
-          "requires": {
-            "safe-buffer": "^5.0.1"
-          }
+          "dev": true
         },
         "bn.js": {
-          "version": "4.11.8",
+          "version": "4.11.9",
           "bundled": true,
           "dev": true
         },
@@ -3213,6 +3447,24 @@
             "safe-buffer": "^5.0.1"
           }
         },
+        "bs58": {
+          "version": "4.0.1",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "base-x": "^3.0.2"
+          }
+        },
+        "bs58check": {
+          "version": "2.1.2",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "bs58": "^4.0.0",
+            "create-hash": "^1.1.0",
+            "safe-buffer": "^5.1.2"
+          }
+        },
         "buffer-from": {
           "version": "1.1.1",
           "bundled": true,
@@ -3302,18 +3554,8 @@
           "bundled": true,
           "dev": true
         },
-        "drbg.js": {
-          "version": "1.0.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "browserify-aes": "^1.0.6",
-            "create-hash": "^1.1.2",
-            "create-hmac": "^1.1.4"
-          }
-        },
         "elliptic": {
-          "version": "6.5.0",
+          "version": "6.5.3",
           "bundled": true,
           "dev": true,
           "requires": {
@@ -3332,25 +3574,47 @@
           "dev": true
         },
         "end-of-stream": {
-          "version": "1.4.1",
+          "version": "1.4.4",
           "bundled": true,
           "dev": true,
           "requires": {
             "once": "^1.4.0"
           }
         },
+        "ethereum-cryptography": {
+          "version": "0.1.3",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "@types/pbkdf2": "^3.0.0",
+            "@types/secp256k1": "^4.0.1",
+            "blakejs": "^1.1.0",
+            "browserify-aes": "^1.2.0",
+            "bs58check": "^2.1.2",
+            "create-hash": "^1.2.0",
+            "create-hmac": "^1.1.7",
+            "hash.js": "^1.1.7",
+            "keccak": "^3.0.0",
+            "pbkdf2": "^3.0.17",
+            "randombytes": "^2.1.0",
+            "safe-buffer": "^5.1.2",
+            "scrypt-js": "^3.0.0",
+            "secp256k1": "^4.0.1",
+            "setimmediate": "^1.0.5"
+          }
+        },
         "ethereumjs-util": {
-          "version": "6.1.0",
+          "version": "6.2.1",
           "bundled": true,
           "dev": true,
           "requires": {
+            "@types/bn.js": "^4.11.3",
             "bn.js": "^4.11.0",
             "create-hash": "^1.1.2",
+            "elliptic": "^6.5.2",
+            "ethereum-cryptography": "^0.1.3",
             "ethjs-util": "0.1.6",
-            "keccak": "^1.0.2",
-            "rlp": "^2.0.0",
-            "safe-buffer": "^5.1.1",
-            "secp256k1": "^3.0.1"
+            "rlp": "^2.2.3"
           }
         },
         "ethjs-util": {
@@ -3385,11 +3649,6 @@
             "strip-eof": "^1.0.0"
           }
         },
-        "file-uri-to-path": {
-          "version": "1.0.0",
-          "bundled": true,
-          "dev": true
-        },
         "find-up": {
           "version": "3.0.0",
           "bundled": true,
@@ -3412,12 +3671,13 @@
           }
         },
         "hash-base": {
-          "version": "3.0.4",
+          "version": "3.1.0",
           "bundled": true,
           "dev": true,
           "requires": {
-            "inherits": "^2.0.1",
-            "safe-buffer": "^5.0.1"
+            "inherits": "^2.0.4",
+            "readable-stream": "^3.6.0",
+            "safe-buffer": "^5.2.0"
           }
         },
         "hash.js": {
@@ -3470,14 +3730,12 @@
           "dev": true
         },
         "keccak": {
-          "version": "1.4.0",
+          "version": "3.0.1",
           "bundled": true,
           "dev": true,
           "requires": {
-            "bindings": "^1.2.1",
-            "inherits": "^2.0.3",
-            "nan": "^2.2.1",
-            "safe-buffer": "^5.1.0"
+            "node-addon-api": "^2.0.0",
+            "node-gyp-build": "^4.2.0"
           }
         },
         "lcid": {
@@ -3540,13 +3798,18 @@
           "bundled": true,
           "dev": true
         },
-        "nan": {
-          "version": "2.14.0",
+        "nice-try": {
+          "version": "1.0.5",
           "bundled": true,
           "dev": true
         },
-        "nice-try": {
-          "version": "1.0.5",
+        "node-addon-api": {
+          "version": "2.0.2",
+          "bundled": true,
+          "dev": true
+        },
+        "node-gyp-build": {
+          "version": "4.2.3",
           "bundled": true,
           "dev": true
         },
@@ -3592,7 +3855,7 @@
           "dev": true
         },
         "p-limit": {
-          "version": "2.2.0",
+          "version": "2.3.0",
           "bundled": true,
           "dev": true,
           "requires": {
@@ -3622,6 +3885,18 @@
           "bundled": true,
           "dev": true
         },
+        "pbkdf2": {
+          "version": "3.1.1",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "create-hash": "^1.1.2",
+            "create-hmac": "^1.1.4",
+            "ripemd160": "^2.0.1",
+            "safe-buffer": "^5.0.1",
+            "sha.js": "^2.4.8"
+          }
+        },
         "pump": {
           "version": "3.0.0",
           "bundled": true,
@@ -3631,6 +3906,24 @@
             "once": "^1.3.1"
           }
         },
+        "randombytes": {
+          "version": "2.1.0",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "safe-buffer": "^5.1.0"
+          }
+        },
+        "readable-stream": {
+          "version": "3.6.0",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "inherits": "^2.0.3",
+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
+          }
+        },
         "require-directory": {
           "version": "2.1.1",
           "bundled": true,
@@ -3651,36 +3944,35 @@
           }
         },
         "rlp": {
-          "version": "2.2.3",
+          "version": "2.2.6",
           "bundled": true,
           "dev": true,
           "requires": {
-            "bn.js": "^4.11.1",
-            "safe-buffer": "^5.1.1"
+            "bn.js": "^4.11.1"
           }
         },
         "safe-buffer": {
-          "version": "5.2.0",
+          "version": "5.2.1",
+          "bundled": true,
+          "dev": true
+        },
+        "scrypt-js": {
+          "version": "3.0.1",
           "bundled": true,
           "dev": true
         },
         "secp256k1": {
-          "version": "3.7.1",
+          "version": "4.0.2",
           "bundled": true,
           "dev": true,
           "requires": {
-            "bindings": "^1.5.0",
-            "bip66": "^1.1.5",
-            "bn.js": "^4.11.8",
-            "create-hash": "^1.2.0",
-            "drbg.js": "^1.0.1",
-            "elliptic": "^6.4.1",
-            "nan": "^2.14.0",
-            "safe-buffer": "^5.1.2"
+            "elliptic": "^6.5.2",
+            "node-addon-api": "^2.0.0",
+            "node-gyp-build": "^4.2.0"
           }
         },
         "semver": {
-          "version": "5.7.0",
+          "version": "5.7.1",
           "bundled": true,
           "dev": true
         },
@@ -3689,6 +3981,11 @@
           "bundled": true,
           "dev": true
         },
+        "setimmediate": {
+          "version": "1.0.5",
+          "bundled": true,
+          "dev": true
+        },
         "sha.js": {
           "version": "2.4.11",
           "bundled": true,
@@ -3712,7 +4009,7 @@
           "dev": true
         },
         "signal-exit": {
-          "version": "3.0.2",
+          "version": "3.0.3",
           "bundled": true,
           "dev": true
         },
@@ -3740,6 +4037,14 @@
             "strip-ansi": "^5.1.0"
           }
         },
+        "string_decoder": {
+          "version": "1.3.0",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "safe-buffer": "~5.2.0"
+          }
+        },
         "strip-ansi": {
           "version": "5.2.0",
           "bundled": true,
@@ -3761,6 +4066,11 @@
             "is-hex-prefixed": "1.0.0"
           }
         },
+        "util-deprecate": {
+          "version": "1.0.2",
+          "bundled": true,
+          "dev": true
+        },
         "which": {
           "version": "1.3.1",
           "bundled": true,
@@ -3813,7 +4123,7 @@
           }
         },
         "yargs-parser": {
-          "version": "13.1.1",
+          "version": "13.1.2",
           "bundled": true,
           "dev": true,
           "requires": {
@@ -3863,6 +4173,17 @@
       "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-1.0.3.tgz",
       "integrity": "sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w=="
     },
+    "get-intrinsic": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.0.1.tgz",
+      "integrity": "sha512-ZnWP+AmS1VUaLgTRy47+zKtjTxz+0xMpx3I52i+aalBK1QP19ggLF3Db89KJX7kjfOfP2eoa01qc++GwPgufPg==",
+      "dev": true,
+      "requires": {
+        "function-bind": "^1.1.1",
+        "has": "^1.0.3",
+        "has-symbols": "^1.0.1"
+      }
+    },
     "get-pkg-repo": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/get-pkg-repo/-/get-pkg-repo-1.4.0.tgz",
@@ -4125,6 +4446,15 @@
         "har-schema": "^2.0.0"
       }
     },
+    "has": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "dev": true,
+      "requires": {
+        "function-bind": "^1.1.1"
+      }
+    },
     "has-ansi": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
@@ -4145,6 +4475,12 @@
       "integrity": "sha512-3ToOva++HaW+eCpgqZrCfN51IPB+7bJNVT6CUATzueB5Heb8o6Nam0V3HG5dlDvZU1Gn5QLcbahiKw/XVk5JJw==",
       "dev": true
     },
+    "has-symbols": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.1.tgz",
+      "integrity": "sha512-PLcsoqu++dmEIZB+6totNFKq/7Do+Z0u4oT0zKOJNl3lYK6vGwwu2hjHs+68OEZbTjiUE9bgOABXbP/GvrS0Kg==",
+      "dev": true
+    },
     "has-to-string-tag-x": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/has-to-string-tag-x/-/has-to-string-tag-x-1.4.1.tgz",
@@ -4373,11 +4709,38 @@
       "integrity": "sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g==",
       "dev": true
     },
+    "is-arguments": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/is-arguments/-/is-arguments-1.0.4.tgz",
+      "integrity": "sha512-xPh0Rmt8NE65sNzvyUmWgI1tz3mKq74lGA0mL8LYZcoIzKOzDh6HmrYm3d18k60nHerC8A9Km8kYu87zfSFnLA==",
+      "dev": true
+    },
     "is-arrayish": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.2.1.tgz",
       "integrity": "sha1-d8mYQFJ6qOyxqLppe4BkWnqSap0="
     },
+    "is-binary-path": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",
+      "integrity": "sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw==",
+      "dev": true,
+      "requires": {
+        "binary-extensions": "^2.0.0"
+      }
+    },
+    "is-buffer": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.4.tgz",
+      "integrity": "sha512-Kq1rokWXOPXWuaMAqZiJW4XxsmD9zGx9q4aePabbn3qCRGedtH7Cm+zV8WETitMfu1wdh+Rvd6w5egwSngUX2A==",
+      "dev": true
+    },
+    "is-callable": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/is-callable/-/is-callable-1.2.2.tgz",
+      "integrity": "sha512-dnMqspv5nU3LoewK2N/y7KLtxtakvTuaCsU9FU50/QDmdbHNy/4/JuRtMHqRU22o3q+W89YQndQEeCVwK+3qrA==",
+      "dev": true
+    },
     "is-ci": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/is-ci/-/is-ci-1.2.1.tgz",
@@ -4386,6 +4749,12 @@
         "ci-info": "^1.5.0"
       }
     },
+    "is-date-object": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/is-date-object/-/is-date-object-1.0.2.tgz",
+      "integrity": "sha512-USlDT524woQ08aoZFzh3/Z6ch9Y/EWXEHQ/AaRN0SkKq4t2Jw2R2339tSXmwuVoY7LLlBCbOIlx2myP/L5zk0g==",
+      "dev": true
+    },
     "is-extglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
@@ -4419,6 +4788,24 @@
       "resolved": "https://registry.npmjs.org/is-hex-prefixed/-/is-hex-prefixed-1.0.0.tgz",
       "integrity": "sha1-fY035q135dEnFIkTxXPggtd39VQ="
     },
+    "is-map": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/is-map/-/is-map-2.0.1.tgz",
+      "integrity": "sha512-T/S49scO8plUiAOA2DBTBG3JHpn1yiw0kRp6dgiZ0v2/6twi5eiB0rHtHFH9ZIrvlWc6+4O+m4zg5+Z833aXgw==",
+      "dev": true
+    },
+    "is-negative-zero": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/is-negative-zero/-/is-negative-zero-2.0.0.tgz",
+      "integrity": "sha1-lVOxIbD6wohp2p7UWeIMdUN4hGE=",
+      "dev": true
+    },
+    "is-number": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
+      "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==",
+      "dev": true
+    },
     "is-obj": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/is-obj/-/is-obj-1.0.1.tgz",
@@ -4445,21 +4832,51 @@
       "resolved": "https://registry.npmjs.org/is-redirect/-/is-redirect-1.0.0.tgz",
       "integrity": "sha1-HQPd7VO9jbDzDCbk+V02/HyH3CQ="
     },
+    "is-regex": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.1.1.tgz",
+      "integrity": "sha512-1+QkEcxiLlB7VEyFtyBg94e08OAsvq7FUBgApTq/w2ymCLyKJgDPsybBENVtA7XCQEgEXxKPonG+mvYRxh/LIg==",
+      "dev": true,
+      "requires": {
+        "has-symbols": "^1.0.1"
+      }
+    },
     "is-retry-allowed": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/is-retry-allowed/-/is-retry-allowed-1.2.0.tgz",
       "integrity": "sha512-RUbUeKwvm3XG2VYamhJL1xFktgjvPzL0Hq8C+6yrWIswDy3BIXGqCxhxkc30N9jqK311gVU137K8Ei55/zVJRg=="
     },
+    "is-set": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/is-set/-/is-set-2.0.1.tgz",
+      "integrity": "sha512-eJEzOtVyenDs1TMzSQ3kU3K+E0GUS9sno+F0OBT97xsgcJsF9nXMBtkT9/kut5JEpM7oL7X/0qxR17K3mcwIAA==",
+      "dev": true
+    },
     "is-stream": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/is-stream/-/is-stream-1.1.0.tgz",
       "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ="
     },
+    "is-string": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/is-string/-/is-string-1.0.5.tgz",
+      "integrity": "sha512-buY6VNRjhQMiF1qWDouloZlQbRhDPCebwxSjxMjxgemYT46YMd2NR0/H+fBhEfWX4A/w9TBJ+ol+okqJKFE6vQ==",
+      "dev": true
+    },
     "is-subset": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/is-subset/-/is-subset-0.1.1.tgz",
       "integrity": "sha1-ilkRfZMt4d4A8kX83TnOQ/HpOaY="
     },
+    "is-symbol": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/is-symbol/-/is-symbol-1.0.3.tgz",
+      "integrity": "sha512-OwijhaRSgqvhm/0ZdAcXNZt9lYdKFpcRDT5ULUuYXPoT794UNOdU+gpT6Rzo7b4V2HUl/op6GqY894AZwv9faQ==",
+      "dev": true,
+      "requires": {
+        "has-symbols": "^1.0.1"
+      }
+    },
     "is-text-path": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/is-text-path/-/is-text-path-1.0.1.tgz",
@@ -4563,6 +4980,22 @@
         "is-object": "^1.0.1"
       }
     },
+    "iterate-iterator": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/iterate-iterator/-/iterate-iterator-1.0.1.tgz",
+      "integrity": "sha512-3Q6tudGN05kbkDQDI4CqjaBf4qf85w6W6GnuZDtUVYwKgtC1q8yxYX7CZed7N+tLzQqS6roujWvszf13T+n9aw==",
+      "dev": true
+    },
+    "iterate-value": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/iterate-value/-/iterate-value-1.0.2.tgz",
+      "integrity": "sha512-A6fMAio4D2ot2r/TYzr4yUWrmwNdsN5xL7+HUiyACE4DXm+q8HtPcnFTp+NnW3k4N05tZ7FVYFFb2CR13NxyHQ==",
+      "dev": true,
+      "requires": {
+        "es-get-iterator": "^1.0.2",
+        "iterate-iterator": "^1.0.1"
+      }
+    },
     "js-sha3": {
       "version": "0.5.7",
       "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
@@ -4815,6 +5248,66 @@
         "lodash._reinterpolate": "^3.0.0"
       }
     },
+    "log-symbols": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-4.0.0.tgz",
+      "integrity": "sha512-FN8JBzLx6CzeMrB0tg6pqlGU1wCrXW+ZXGH481kfsBqer0hToTIiHdjH4Mq8xJUbvATujKCvaREGWpGUionraA==",
+      "dev": true,
+      "requires": {
+        "chalk": "^4.0.0"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+          "dev": true,
+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
+        "chalk": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
+          "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true
+        },
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+          "dev": true
+        },
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^4.0.0"
+          }
+        }
+      }
+    },
     "loose-envify": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/loose-envify/-/loose-envify-1.4.0.tgz",
@@ -5244,6 +5737,12 @@
         "validate-npm-package-license": "^3.0.1"
       }
     },
+    "normalize-path": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
+      "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==",
+      "dev": true
+    },
     "normalize-url": {
       "version": "4.5.0",
       "resolved": "https://registry.npmjs.org/normalize-url/-/normalize-url-4.5.0.tgz",
@@ -5303,6 +5802,30 @@
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
       "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
     },
+    "object-inspect": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.8.0.tgz",
+      "integrity": "sha512-jLdtEOB112fORuypAyl/50VRVIBIdVQOSUUGQHzJ4xBSbit81zRarz7GThkEFZy1RceYrWYcPcBFPQwHyAc1gA==",
+      "dev": true
+    },
+    "object-keys": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.1.1.tgz",
+      "integrity": "sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA==",
+      "dev": true
+    },
+    "object.assign": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/object.assign/-/object.assign-4.1.0.tgz",
+      "integrity": "sha512-exHJeq6kBKj58mqGyTQ9DFvrZC/eR6OwxzoM9YRoGBqrXYonaFyGiFMuc9VZrXf7DarreEwMpurG3dd+CNyW5w==",
+      "dev": true,
+      "requires": {
+        "define-properties": "^1.1.2",
+        "function-bind": "^1.1.1",
+        "has-symbols": "^1.0.0",
+        "object-keys": "^1.0.11"
+      }
+    },
     "oboe": {
       "version": "2.1.4",
       "resolved": "https://registry.npmjs.org/oboe/-/oboe-2.1.4.tgz",
@@ -5554,6 +6077,12 @@
       "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=",
       "dev": true
     },
+    "picomatch": {
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.2.2.tgz",
+      "integrity": "sha512-q0M/9eZHzmr0AulXyPwNfZjtwZ/RBZlbN3K3CErVrk50T2ASYI7Bye0EvekFY3IP1Nt2DHu0re+V2ZHIpMkuWg==",
+      "dev": true
+    },
     "pify": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
@@ -5605,6 +6134,19 @@
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
       "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag=="
     },
+    "promise.allsettled": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/promise.allsettled/-/promise.allsettled-1.0.2.tgz",
+      "integrity": "sha512-UpcYW5S1RaNKT6pd+s9jp9K9rlQge1UXKskec0j6Mmuq7UJCvlS2J2/s/yuPN8ehftf9HXMxWlKiPbGGUzpoRg==",
+      "dev": true,
+      "requires": {
+        "array.prototype.map": "^1.0.1",
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.17.0-next.1",
+        "function-bind": "^1.1.1",
+        "iterate-value": "^1.0.0"
+      }
+    },
     "proxy-addr": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.6.tgz",
@@ -5850,6 +6392,15 @@
         }
       }
     },
+    "readdirp": {
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.4.0.tgz",
+      "integrity": "sha512-0xe001vZBnJEK+uKcj8qOhyAKPzIT+gStxWr3LCB0DwcXR5NZJ3IaC+yGnHCYzB/S7ov3m3EEbZI2zeNvX+hGQ==",
+      "dev": true,
+      "requires": {
+        "picomatch": "^2.2.1"
+      }
+    },
     "rechoir": {
       "version": "0.6.2",
       "resolved": "https://registry.npmjs.org/rechoir/-/rechoir-0.6.2.tgz",
@@ -6175,6 +6726,15 @@
         }
       }
     },
+    "serialize-javascript": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-4.0.0.tgz",
+      "integrity": "sha512-GaNA54380uFefWghODBWEGisLZFj00nS5ACs6yHa9nLqlLpVLO8ChDGeKRjZnV4Nh4n0Qi7nhYZD/9fCPzEqkw==",
+      "dev": true,
+      "requires": {
+        "randombytes": "^2.1.0"
+      }
+    },
     "serve-static": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
@@ -6554,6 +7114,94 @@
         }
       }
     },
+    "string.prototype.trimend": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/string.prototype.trimend/-/string.prototype.trimend-1.0.2.tgz",
+      "integrity": "sha512-8oAG/hi14Z4nOVP0z6mdiVZ/wqjDtWSLygMigTzAb+7aPEDTleeFf+WrF+alzecxIRkckkJVn+dTlwzJXORATw==",
+      "dev": true,
+      "requires": {
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.18.0-next.1"
+      },
+      "dependencies": {
+        "es-abstract": {
+          "version": "1.18.0-next.1",
+          "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.18.0-next.1.tgz",
+          "integrity": "sha512-I4UGspA0wpZXWENrdA0uHbnhte683t3qT/1VFH9aX2dA5PPSf6QW5HHXf5HImaqPmjXaVeVk4RGWnaylmV7uAA==",
+          "dev": true,
+          "requires": {
+            "es-to-primitive": "^1.2.1",
+            "function-bind": "^1.1.1",
+            "has": "^1.0.3",
+            "has-symbols": "^1.0.1",
+            "is-callable": "^1.2.2",
+            "is-negative-zero": "^2.0.0",
+            "is-regex": "^1.1.1",
+            "object-inspect": "^1.8.0",
+            "object-keys": "^1.1.1",
+            "object.assign": "^4.1.1",
+            "string.prototype.trimend": "^1.0.1",
+            "string.prototype.trimstart": "^1.0.1"
+          }
+        },
+        "object.assign": {
+          "version": "4.1.2",
+          "resolved": "https://registry.npmjs.org/object.assign/-/object.assign-4.1.2.tgz",
+          "integrity": "sha512-ixT2L5THXsApyiUPYKmW+2EHpXXe5Ii3M+f4e+aJFAHao5amFRW6J0OO6c/LU8Be47utCx2GL89hxGB6XSmKuQ==",
+          "dev": true,
+          "requires": {
+            "call-bind": "^1.0.0",
+            "define-properties": "^1.1.3",
+            "has-symbols": "^1.0.1",
+            "object-keys": "^1.1.1"
+          }
+        }
+      }
+    },
+    "string.prototype.trimstart": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/string.prototype.trimstart/-/string.prototype.trimstart-1.0.2.tgz",
+      "integrity": "sha512-7F6CdBTl5zyu30BJFdzSTlSlLPwODC23Od+iLoVH8X6+3fvDPPuBVVj9iaB1GOsSTSIgVfsfm27R2FGrAPznWg==",
+      "dev": true,
+      "requires": {
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.18.0-next.1"
+      },
+      "dependencies": {
+        "es-abstract": {
+          "version": "1.18.0-next.1",
+          "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.18.0-next.1.tgz",
+          "integrity": "sha512-I4UGspA0wpZXWENrdA0uHbnhte683t3qT/1VFH9aX2dA5PPSf6QW5HHXf5HImaqPmjXaVeVk4RGWnaylmV7uAA==",
+          "dev": true,
+          "requires": {
+            "es-to-primitive": "^1.2.1",
+            "function-bind": "^1.1.1",
+            "has": "^1.0.3",
+            "has-symbols": "^1.0.1",
+            "is-callable": "^1.2.2",
+            "is-negative-zero": "^2.0.0",
+            "is-regex": "^1.1.1",
+            "object-inspect": "^1.8.0",
+            "object-keys": "^1.1.1",
+            "object.assign": "^4.1.1",
+            "string.prototype.trimend": "^1.0.1",
+            "string.prototype.trimstart": "^1.0.1"
+          }
+        },
+        "object.assign": {
+          "version": "4.1.2",
+          "resolved": "https://registry.npmjs.org/object.assign/-/object.assign-4.1.2.tgz",
+          "integrity": "sha512-ixT2L5THXsApyiUPYKmW+2EHpXXe5Ii3M+f4e+aJFAHao5amFRW6J0OO6c/LU8Be47utCx2GL89hxGB6XSmKuQ==",
+          "dev": true,
+          "requires": {
+            "call-bind": "^1.0.0",
+            "define-properties": "^1.1.3",
+            "has-symbols": "^1.0.1",
+            "object-keys": "^1.1.1"
+          }
+        }
+      }
+    },
     "string_decoder": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
@@ -6802,6 +7450,15 @@
       "integrity": "sha512-Iq25XBt6zD5npPhlLVXGFN3/gyR2/qODcKNNyTMd4vbm39HUaOiAM4PMq0eMVC/Tkxz+Zjdsc55g9yyz+Yq00Q==",
       "dev": true
     },
+    "to-regex-range": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+      "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+      "dev": true,
+      "requires": {
+        "is-number": "^7.0.0"
+      }
+    },
     "toidentifier": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
@@ -6841,104 +7498,332 @@
       "dev": true
     },
     "truffle": {
-      "version": "5.1.27",
-      "resolved": "https://registry.npmjs.org/truffle/-/truffle-5.1.27.tgz",
-      "integrity": "sha512-um/mxQ0y8ZQ5+iDApqfvV4+yZX7UOyWlbzYmtFvJRkkB4PRk0xghV9ssDBC1zlXFy/OmSTUSzApQXA2WA763/Q==",
+      "version": "5.1.51",
+      "resolved": "https://registry.npmjs.org/truffle/-/truffle-5.1.51.tgz",
+      "integrity": "sha512-Sbw+FF2AfEvkcL/iOFm8UQPfuAfQ695UgxRliBE5sb7WoIN1IwRS0l0Cw+n8XOhkLTxOpoFtVEmrbdqWkZTz7g==",
       "dev": true,
       "requires": {
         "app-module-path": "^2.2.0",
-        "mocha": "5.2.0",
+        "mocha": "8.1.2",
         "original-require": "1.0.1"
       },
       "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "dev": true
+        },
         "browser-stdout": {
           "version": "1.3.1",
           "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
           "integrity": "sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==",
           "dev": true
         },
-        "commander": {
-          "version": "2.15.1",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
-          "integrity": "sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag==",
+        "camelcase": {
+          "version": "5.3.1",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
           "dev": true
         },
+        "cliui": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
+          "integrity": "sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==",
+          "dev": true,
+          "requires": {
+            "string-width": "^3.1.0",
+            "strip-ansi": "^5.2.0",
+            "wrap-ansi": "^5.1.0"
+          }
+        },
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
+            "ms": "^2.1.1"
           }
         },
         "diff": {
-          "version": "3.5.0",
-          "resolved": "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz",
-          "integrity": "sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==",
+          "version": "4.0.2",
+          "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
+          "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
           "dev": true
         },
-        "glob": {
-          "version": "7.1.2",
-          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
-          "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
+        "escape-string-regexp": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz",
+          "integrity": "sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==",
+          "dev": true
+        },
+        "esprima": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
+          "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
+          "dev": true
+        },
+        "find-up": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-5.0.0.tgz",
+          "integrity": "sha512-78/PXT1wlLLDgTzDs7sjq9hzz0vXD+zn+7wypEe4fXQxCmdmqfGsEPQxmiCSQI3ajFV91bVSsvNtrJRiW6nGng==",
           "dev": true,
           "requires": {
-            "fs.realpath": "^1.0.0",
-            "inflight": "^1.0.4",
-            "inherits": "2",
-            "minimatch": "^3.0.4",
-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
+            "locate-path": "^6.0.0",
+            "path-exists": "^4.0.0"
           }
         },
+        "get-caller-file": {
+          "version": "2.0.5",
+          "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
+          "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
+          "dev": true
+        },
         "growl": {
           "version": "1.10.5",
           "resolved": "https://registry.npmjs.org/growl/-/growl-1.10.5.tgz",
           "integrity": "sha512-qBr4OuELkhPenW6goKVXiv47US3clb3/IbuWF9KNKEijAy9oeHxU9IgzjvJhHkUzhaj7rOUD7+YGWqUjLp5oSA==",
           "dev": true
         },
-        "minimist": {
-          "version": "0.0.8",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
           "dev": true
         },
-        "mkdirp": {
-          "version": "0.5.1",
-          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-          "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+        "he": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/he/-/he-1.2.0.tgz",
+          "integrity": "sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==",
+          "dev": true
+        },
+        "js-yaml": {
+          "version": "3.14.0",
+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.0.tgz",
+          "integrity": "sha512-/4IbIeHcD9VMHFqDR/gQ7EdZdLimOvW2DdcxFjdyyZ9NsbS+ccrXqVWDtab/lRl5AlUqmpBx8EhPaWR+OtY17A==",
           "dev": true,
           "requires": {
-            "minimist": "0.0.8"
+            "argparse": "^1.0.7",
+            "esprima": "^4.0.0"
+          }
+        },
+        "locate-path": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-6.0.0.tgz",
+          "integrity": "sha512-iPZK6eYjbxRu3uB4/WZ3EsEIMJFMqAoopl3R+zuq0UjcAm/MO6KCweDgPfP3elTztoKP3KtnVHxTn2NHBSDVUw==",
+          "dev": true,
+          "requires": {
+            "p-locate": "^5.0.0"
           }
         },
         "mocha": {
-          "version": "5.2.0",
-          "resolved": "https://registry.npmjs.org/mocha/-/mocha-5.2.0.tgz",
-          "integrity": "sha512-2IUgKDhc3J7Uug+FxMXuqIyYzH7gJjXECKe/w43IGgQHTSj3InJi+yAA7T24L9bQMRKiUEHxEX37G5JpVUGLcQ==",
+          "version": "8.1.2",
+          "resolved": "https://registry.npmjs.org/mocha/-/mocha-8.1.2.tgz",
+          "integrity": "sha512-I8FRAcuACNMLQn3lS4qeWLxXqLvGf6r2CaLstDpZmMUUSmvW6Cnm1AuHxgbc7ctZVRcfwspCRbDHymPsi3dkJw==",
           "dev": true,
           "requires": {
+            "ansi-colors": "4.1.1",
             "browser-stdout": "1.3.1",
-            "commander": "2.15.1",
-            "debug": "3.1.0",
-            "diff": "3.5.0",
-            "escape-string-regexp": "1.0.5",
-            "glob": "7.1.2",
+            "chokidar": "3.4.2",
+            "debug": "4.1.1",
+            "diff": "4.0.2",
+            "escape-string-regexp": "4.0.0",
+            "find-up": "5.0.0",
+            "glob": "7.1.6",
             "growl": "1.10.5",
-            "he": "1.1.1",
+            "he": "1.2.0",
+            "js-yaml": "3.14.0",
+            "log-symbols": "4.0.0",
             "minimatch": "3.0.4",
-            "mkdirp": "0.5.1",
-            "supports-color": "5.4.0"
+            "ms": "2.1.2",
+            "object.assign": "4.1.0",
+            "promise.allsettled": "1.0.2",
+            "serialize-javascript": "4.0.0",
+            "strip-json-comments": "3.0.1",
+            "supports-color": "7.1.0",
+            "which": "2.0.2",
+            "wide-align": "1.1.3",
+            "workerpool": "6.0.0",
+            "yargs": "13.3.2",
+            "yargs-parser": "13.1.2",
+            "yargs-unparser": "1.6.1"
           }
         },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        },
+        "p-limit": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-3.0.2.tgz",
+          "integrity": "sha512-iwqZSOoWIW+Ew4kAGUlN16J4M7OB3ysMLSZtnhmqx7njIHFPlxWBX8xo3lVTyFVq6mI/lL9qt2IsN1sHwaxJkg==",
+          "dev": true,
+          "requires": {
+            "p-try": "^2.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-5.0.0.tgz",
+          "integrity": "sha512-LaNjtRWUBY++zB5nE/NwcaoMylSPk+S+ZHNB1TzdbMJMny6dynpAGt7X/tl/QYq3TIeE6nxHppbo2LGymrG5Pw==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^3.0.2"
+          }
+        },
+        "p-try": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
+          "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+          "dev": true
+        },
+        "path-exists": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
+          "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==",
+          "dev": true
+        },
+        "require-main-filename": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-2.0.0.tgz",
+          "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        },
+        "strip-json-comments": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.0.1.tgz",
+          "integrity": "sha512-VTyMAUfdm047mwKl+u79WIdrZxtFtn+nBxHeb844XBQ9uMNTuTHdx2hc5RiAJYqwTj3wc/xe5HLSdJSkJ+WfZw==",
+          "dev": true
+        },
         "supports-color": {
-          "version": "5.4.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.4.0.tgz",
-          "integrity": "sha512-zjaXglF5nnWpsq470jSv6P9DwPvgLkuapYmfDm3JWOm0vkNTVF2tI4UrN2r6jH1qM/uc/WtxYY1hYoA2dOKj5w==",
+          "version": "7.1.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.1.0.tgz",
+          "integrity": "sha512-oRSIpR8pxT1Wr2FquTNnGet79b3BWljqOuoW/h4oBhxJ/HUbX5nX6JSruTkvXDCFMwDPvsaTTbvMLKZWSy0R5g==",
           "dev": true,
           "requires": {
-            "has-flag": "^3.0.0"
+            "has-flag": "^4.0.0"
+          }
+        },
+        "which": {
+          "version": "2.0.2",
+          "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+          "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+          "dev": true,
+          "requires": {
+            "isexe": "^2.0.0"
+          }
+        },
+        "wrap-ansi": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
+          "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.0",
+            "string-width": "^3.0.0",
+            "strip-ansi": "^5.0.0"
+          }
+        },
+        "y18n": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+          "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+          "dev": true
+        },
+        "yargs": {
+          "version": "13.3.2",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.2.tgz",
+          "integrity": "sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==",
+          "dev": true,
+          "requires": {
+            "cliui": "^5.0.0",
+            "find-up": "^3.0.0",
+            "get-caller-file": "^2.0.1",
+            "require-directory": "^2.1.1",
+            "require-main-filename": "^2.0.0",
+            "set-blocking": "^2.0.0",
+            "string-width": "^3.0.0",
+            "which-module": "^2.0.0",
+            "y18n": "^4.0.0",
+            "yargs-parser": "^13.1.2"
+          },
+          "dependencies": {
+            "find-up": {
+              "version": "3.0.0",
+              "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+              "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+              "dev": true,
+              "requires": {
+                "locate-path": "^3.0.0"
+              }
+            },
+            "locate-path": {
+              "version": "3.0.0",
+              "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+              "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+              "dev": true,
+              "requires": {
+                "p-locate": "^3.0.0",
+                "path-exists": "^3.0.0"
+              }
+            },
+            "p-limit": {
+              "version": "2.3.0",
+              "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
+              "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
+              "dev": true,
+              "requires": {
+                "p-try": "^2.0.0"
+              }
+            },
+            "p-locate": {
+              "version": "3.0.0",
+              "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+              "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+              "dev": true,
+              "requires": {
+                "p-limit": "^2.0.0"
+              }
+            },
+            "path-exists": {
+              "version": "3.0.0",
+              "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+              "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+              "dev": true
+            }
+          }
+        },
+        "yargs-parser": {
+          "version": "13.1.2",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
+          "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
+          "dev": true,
+          "requires": {
+            "camelcase": "^5.0.0",
+            "decamelize": "^1.2.0"
           }
         }
       }
@@ -7742,6 +8627,12 @@
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
       "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
     },
+    "workerpool": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/workerpool/-/workerpool-6.0.0.tgz",
+      "integrity": "sha512-fU2OcNA/GVAJLLyKUoHkAgIhKb0JoCpSjLC/G2vYKxUjVmQwGbRVeoPJ1a8U4pnVofz4AQV5Y/NEw8oKqxEBtA==",
+      "dev": true
+    },
     "wrap-ansi": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
@@ -7981,6 +8872,165 @@
       "requires": {
         "camelcase": "^4.1.0"
       }
+    },
+    "yargs-unparser": {
+      "version": "1.6.1",
+      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-1.6.1.tgz",
+      "integrity": "sha512-qZV14lK9MWsGCmcr7u5oXGH0dbGqZAIxTDrWXZDo5zUr6b6iUmelNKO6x6R1dQT24AH3LgRxJpr8meWy2unolA==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.3.1",
+        "decamelize": "^1.2.0",
+        "flat": "^4.1.0",
+        "is-plain-obj": "^1.1.0",
+        "yargs": "^14.2.3"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "dev": true
+        },
+        "camelcase": {
+          "version": "5.3.1",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+          "dev": true
+        },
+        "cliui": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
+          "integrity": "sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==",
+          "dev": true,
+          "requires": {
+            "string-width": "^3.1.0",
+            "strip-ansi": "^5.2.0",
+            "wrap-ansi": "^5.1.0"
+          }
+        },
+        "find-up": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+          "dev": true,
+          "requires": {
+            "locate-path": "^3.0.0"
+          }
+        },
+        "get-caller-file": {
+          "version": "2.0.5",
+          "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
+          "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
+          "dev": true
+        },
+        "locate-path": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "dev": true,
+          "requires": {
+            "p-locate": "^3.0.0",
+            "path-exists": "^3.0.0"
+          }
+        },
+        "p-limit": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
+          "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
+          "dev": true,
+          "requires": {
+            "p-try": "^2.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^2.0.0"
+          }
+        },
+        "p-try": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
+          "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+          "dev": true
+        },
+        "require-main-filename": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-2.0.0.tgz",
+          "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        },
+        "wrap-ansi": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
+          "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.0",
+            "string-width": "^3.0.0",
+            "strip-ansi": "^5.0.0"
+          }
+        },
+        "y18n": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+          "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+          "dev": true
+        },
+        "yargs": {
+          "version": "14.2.3",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-14.2.3.tgz",
+          "integrity": "sha512-ZbotRWhF+lkjijC/VhmOT9wSgyBQ7+zr13+YLkhfsSiTriYsMzkTUFP18pFhWwBeMa5gUc1MzbhrO6/VB7c9Xg==",
+          "dev": true,
+          "requires": {
+            "cliui": "^5.0.0",
+            "decamelize": "^1.2.0",
+            "find-up": "^3.0.0",
+            "get-caller-file": "^2.0.1",
+            "require-directory": "^2.1.1",
+            "require-main-filename": "^2.0.0",
+            "set-blocking": "^2.0.0",
+            "string-width": "^3.0.0",
+            "which-module": "^2.0.0",
+            "y18n": "^4.0.0",
+            "yargs-parser": "^15.0.1"
+          }
+        },
+        "yargs-parser": {
+          "version": "15.0.1",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-15.0.1.tgz",
+          "integrity": "sha512-0OAMV2mAZQrs3FkNpDQcBk1x5HXb8X4twADss4S0Iuk+2dGnLOE/fRHrsYm542GduMveyA77OF4wrNJuanRCWw==",
+          "dev": true,
+          "requires": {
+            "camelcase": "^5.0.0",
+            "decamelize": "^1.2.0"
+          }
+        }
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index 34e960e90..2264f804d 100644
--- a/package.json
+++ b/package.json
@@ -20,10 +20,10 @@
     "babel-preset-stage-2": "^6.24.1",
     "babel-preset-stage-3": "^6.24.1",
     "babel-register": "^6.26.0",
-    "ganache-cli": "^6.9.1",
+    "ganache-cli": "^6.12.1",
     "prettier": "^1.10.2",
     "solidity-coverage": "^0.5.11",
-    "truffle": "^5.1.27",
+    "truffle": "^5.1.51",
     "truffle-contract": "^3.*",
     "typedarray-to-buffer": "^3.1.5",
     "web3": "^1.2.8"
diff --git a/test/node/scenario-set-trusted.js b/test/node/scenario-set-trusted.js
index 47bd29b08..784a94b17 100644
--- a/test/node/scenario-set-trusted.js
+++ b/test/node/scenario-set-trusted.js
@@ -21,7 +21,8 @@ export async function setNodeTrusted(nodeAddress, trusted, txOptions) {
         rocketNodeManager.getTrustedNodeCount.call(),
         rocketNodeManager.getNodeTrusted.call(nodeAddress),
     ]);
-    let lastTrustedAddress = await rocketNodeManager.getTrustedNodeAt.call(trustedCount2.sub(web3.utils.toBN(1)));
+
+    let lastTrustedAddress = Number(trustedCount2) > 0 ? await rocketNodeManager.getTrustedNodeAt.call(trustedCount2.sub(web3.utils.toBN(1))) : null;
 
     // Check trusted node index
     if (trusted) {