diff --git a/package-lock.json b/package-lock.json
index a2cca5272c..05b4ad01cc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -302,6 +302,7 @@
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/@types/acorn/-/acorn-4.0.3.tgz",
       "integrity": "sha512-gou/kWQkGPMZjdCKNZGDpqxLm9+ErG/pFZKPX4tvCjr0Xf4FCYYX3nAsu7aDVKJV3KUe27+mvqqyWT/9VZoM/A==",
+      "dev": true,
       "requires": {
         "@types/estree": "0.0.39"
       }
@@ -337,6 +338,14 @@
       "dev": true,
       "requires": {
         "@types/node": "9.6.28"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "9.6.28",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-9.6.28.tgz",
+          "integrity": "sha512-LMSOxMKNJ8tGqUVs8lSIT8RGo1XGWYada/ZU2QZcbcD6AW9futXDE99tfQA0K6DK60GXcwplsGGK5KABRmI5GA==",
+          "dev": true
+        }
       }
     },
     "@types/draft-js": {
@@ -430,9 +439,9 @@
       "dev": true
     },
     "@types/node": {
-      "version": "9.6.28",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-9.6.28.tgz",
-      "integrity": "sha512-LMSOxMKNJ8tGqUVs8lSIT8RGo1XGWYada/ZU2QZcbcD6AW9futXDE99tfQA0K6DK60GXcwplsGGK5KABRmI5GA==",
+      "version": "11.9.5",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-11.9.5.tgz",
+      "integrity": "sha512-vVjM0SVzgaOUpflq4GYBvCpozes8OgIIS5gVXVka+OfK3hvnkC1i93U8WiY2OtNE4XUWyyy/86Kf6e0IHTQw1Q==",
       "dev": true
     },
     "@types/pixi.js": {
@@ -483,6 +492,14 @@
       "requires": {
         "@types/node": "9.6.28",
         "@types/react": "16.4.11"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "9.6.28",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-9.6.28.tgz",
+          "integrity": "sha512-LMSOxMKNJ8tGqUVs8lSIT8RGo1XGWYada/ZU2QZcbcD6AW9futXDE99tfQA0K6DK60GXcwplsGGK5KABRmI5GA==",
+          "dev": true
+        }
       }
     },
     "@types/react-redux": {
@@ -574,9 +591,9 @@
       }
     },
     "acorn": {
-      "version": "5.7.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.1.tgz",
-      "integrity": "sha512-d+nbxBUGKg7Arpsvbnlq61mc12ek3EY8EQldM3GPAhWJ1UVxC6TDGbIvUMNU6obBX3i1+ptCIzV4vq0gFPEGVQ=="
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.0.tgz",
+      "integrity": "sha512-MW/FjM+IvU9CgBzjO3UIPCE2pyEwUsoFl+VGdczOPEdxfGFjuKny/gN54mOuX7Qxmb9Rg9MCn2oKiSUeW+pjrw=="
     },
     "acorn-dynamic-import": {
       "version": "2.0.2",
@@ -602,8 +619,21 @@
       "dev": true,
       "requires": {
         "acorn": "5.7.1"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.1.tgz",
+          "integrity": "sha512-d+nbxBUGKg7Arpsvbnlq61mc12ek3EY8EQldM3GPAhWJ1UVxC6TDGbIvUMNU6obBX3i1+ptCIzV4vq0gFPEGVQ==",
+          "dev": true
+        }
       }
     },
+    "acorn-walk": {
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-6.1.1.tgz",
+      "integrity": "sha512-OtUw6JUTgxA2QoqqmrmQ7F2NYqiBPi/L2jqHyFtllhOUvXYQXf0Z1CYUinIfyT4bTCGmrA7gX9FvHA81uzCoVw=="
+    },
     "address": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/address/-/address-1.0.3.tgz",
@@ -2815,7 +2845,8 @@
     "commander": {
       "version": "2.17.1",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
-      "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg=="
+      "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==",
+      "dev": true
     },
     "common-tags": {
       "version": "1.8.0",
@@ -8628,17 +8659,24 @@
       "integrity": "sha512-hm2nYpDrwoO/OzBhdcqs/XGT6XjSuSSCVEpia+Kl2J6x4CYt5hISlVL/AYU1khoDXv0AQVgxtdJySb9gjAn56Q=="
     },
     "js-slang": {
-      "version": "0.1.19",
-      "resolved": "https://registry.npmjs.org/js-slang/-/js-slang-0.1.19.tgz",
-      "integrity": "sha512-X4JgpeDxUSEzn+ssnzXoO7lo6RfDD70V06ecVcRUt5QkV70s+HfcORiO5Cf+SgqUV4LC+2R5cBv0Yk5YSXvqHw==",
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/js-slang/-/js-slang-0.2.0.tgz",
+      "integrity": "sha512-Y8iJQidviBi+2sENvGqy8rSXtphpMft0Yb+Ye8smwEvpdExLpvf6KjWFkqG/q0J0rQmpQfkIvdxatHCclZdelQ==",
       "requires": {
-        "@types/acorn": "^4.0.3",
         "@types/estree": "0.0.39",
-        "acorn": "^5.7.1",
-        "astring": "^1.2.0",
-        "commander": "^2.14.1",
-        "common-tags": "^1.4.0",
-        "invariant": "^2.2.2"
+        "acorn": "^6.0.5",
+        "acorn-walk": "^6.1.1",
+        "astring": "^1.3.1",
+        "commander": "^2.19.0",
+        "common-tags": "^1.8.0",
+        "invariant": "^2.2.4"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "2.19.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.19.0.tgz",
+          "integrity": "sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg=="
+        }
       }
     },
     "js-tokens": {
@@ -8696,6 +8734,12 @@
         "xml-name-validator": "3.0.0"
       },
       "dependencies": {
+        "acorn": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.1.tgz",
+          "integrity": "sha512-d+nbxBUGKg7Arpsvbnlq61mc12ek3EY8EQldM3GPAhWJ1UVxC6TDGbIvUMNU6obBX3i1+ptCIzV4vq0gFPEGVQ==",
+          "dev": true
+        },
         "parse5": {
           "version": "4.0.0",
           "resolved": "https://registry.npmjs.org/parse5/-/parse5-4.0.0.tgz",
@@ -13030,6 +13074,14 @@
       "dev": true,
       "requires": {
         "@types/node": "9.6.28"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "9.6.28",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-9.6.28.tgz",
+          "integrity": "sha512-LMSOxMKNJ8tGqUVs8lSIT8RGo1XGWYada/ZU2QZcbcD6AW9futXDE99tfQA0K6DK60GXcwplsGGK5KABRmI5GA==",
+          "dev": true
+        }
       }
     },
     "parseurl": {
@@ -18004,6 +18056,12 @@
         "yargs": "8.0.2"
       },
       "dependencies": {
+        "acorn": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.1.tgz",
+          "integrity": "sha512-d+nbxBUGKg7Arpsvbnlq61mc12ek3EY8EQldM3GPAhWJ1UVxC6TDGbIvUMNU6obBX3i1+ptCIzV4vq0gFPEGVQ==",
+          "dev": true
+        },
         "ajv-keywords": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-2.1.1.tgz",
diff --git a/package.json b/package.json
index 699451ed0c..cb372872e8 100644
--- a/package.json
+++ b/package.json
@@ -83,7 +83,7 @@
     "@types/jest": "^22.2.3",
     "@types/lodash": "^4.14.110",
     "@types/lz-string": "^1.3.32",
-    "@types/node": "^9.6.5",
+    "@types/node": "^11.9.5",
     "@types/pixi.js": "^4.7.3",
     "@types/query-string": "^5.1.0",
     "@types/react": "^16.3.10",
diff --git a/yarn.lock b/yarn.lock
index fdeb9b3429..80d5ce515b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -278,9 +278,10 @@
   version "1.3.32"
   resolved "https://registry.yarnpkg.com/@types/lz-string/-/lz-string-1.3.32.tgz#60e26d0f70daa6bf385b9437bb02f661a5713f81"
 
-"@types/node@*", "@types/node@^9.6.5":
-  version "9.6.5"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.6.5.tgz#ee700810fdf49ac1c399fc5980b7559b3e5a381d"
+"@types/node@*", "@types/node@^11.9.5":
+  version "11.9.5"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-11.9.5.tgz#011eece9d3f839a806b63973e228f85967b79ed3"
+  integrity sha512-vVjM0SVzgaOUpflq4GYBvCpozes8OgIIS5gVXVka+OfK3hvnkC1i93U8WiY2OtNE4XUWyyy/86Kf6e0IHTQw1Q==
 
 "@types/pixi.js@^4.7.3":
   version "4.7.3"