diff --git a/package-lock.json b/package-lock.json
index 97673b2..d6a08ce 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1010,14 +1010,21 @@
       }
     },
     "ajv": {
-      "version": "6.10.2",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
-      "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "requires": {
-        "fast-deep-equal": "^2.0.1",
+        "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
         "json-schema-traverse": "^0.4.1",
         "uri-js": "^4.2.2"
+      },
+      "dependencies": {
+        "fast-deep-equal": {
+          "version": "3.1.3",
+          "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+          "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q=="
+        }
       }
     },
     "ansi-align": {
@@ -3326,6 +3333,37 @@
         "etherlime-utils": "^1.1.2",
         "ethers": "git+https://github.com/LimeChain/ethers.js.git#master",
         "typescript": "^3.5.1"
+      },
+      "dependencies": {
+        "elliptic": {
+          "version": "6.5.2",
+          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.2.tgz",
+          "integrity": "sha512-f4x70okzZbIQl/NSRLkI/+tteV/9WqL98zx+SQ69KbXxmVrmjwsNUPn/gYJJ0sHvEak24cZgHIPegRePAtA/xw==",
+          "requires": {
+            "bn.js": "^4.4.0",
+            "brorand": "^1.0.1",
+            "hash.js": "^1.0.0",
+            "hmac-drbg": "^1.0.0",
+            "inherits": "^2.0.1",
+            "minimalistic-assert": "^1.0.0",
+            "minimalistic-crypto-utils": "^1.0.0"
+          }
+        },
+        "ethers": {
+          "version": "git+https://github.com/LimeChain/ethers.js.git#7eceb12e0a05ed1e44834556f6a32e20918abf1b",
+          "from": "git+https://github.com/LimeChain/ethers.js.git#master",
+          "requires": {
+            "aes-js": "3.0.0",
+            "bn.js": "^4.4.0",
+            "elliptic": "6.5.2",
+            "hash.js": "1.1.3",
+            "js-sha3": "0.5.7",
+            "scrypt-js": "2.0.4",
+            "setimmediate": "1.0.4",
+            "uuid": "2.0.1",
+            "xmlhttprequest": "1.8.0"
+          }
+        }
       }
     },
     "etherlime-logger": {
@@ -3347,6 +3385,7 @@
     "ethers": {
       "version": "4.0.29",
       "resolved": "git+https://github.com/LimeChain/ethers.js.git#9cd9e35696e522a0930fcd4e0fe15180beb5bd0c",
+      "dev": true,
       "requires": {
         "@types/node": "^10.3.2",
         "aes-js": "3.0.0",