Update dependencies

Author: anttiai

package.json

@@ -37,21 +37,21 @@
   "license": "MIT",
   "dependencies": {
     "es6-promise": "^4.2.8",
-    "isomorphic-fetch": "^2.2.1",
-    "js-base64": "^3.4.5"
+    "isomorphic-fetch": "^3.0.0",
+    "js-base64": "^3.6.0"
   },
   "devDependencies": {
-    "@babel/cli": "^7.10.5",
-    "@babel/core": "^7.11.1",
-    "@babel/preset-env": "^7.11.0",
-    "@babel/register": "^7.10.5",
-    "babel-loader": "^8.1.0",
+    "@babel/cli": "^7.12.8",
+    "@babel/core": "^7.12.9",
+    "@babel/preset-env": "^7.12.7",
+    "@babel/register": "^7.12.1",
+    "babel-loader": "^8.2.1",
     "esm": "^3.2.25",
-    "fetch-mock": "^9.10.6",
-    "mocha": "^8.1.1",
-    "node-fetch": "^2.6.0",
-    "uglify-js": "^3.10.1",
-    "webpack": "^4.44.1",
+    "fetch-mock": "^9.11.0",
+    "mocha": "^8.2.1",
+    "node-fetch": "^2.6.1",
+    "uglify-js": "^3.12.0",
+    "webpack": "^4.44.2",
     "webpack-cli": "^3.3.12"
   }
 }