Updated devDependencies

package.json

@@ -55,11 +55,11 @@
     "react": "^16.0.0",
     "react-dom": "^16.0.0",
     "react-test-renderer": "^16.0.0",
-    "uglifyjs-webpack-plugin": "^0.4.6",
+    "uglifyjs-webpack-plugin": "^1.3.0",
     "webpack": "^4.17.2",
     "webpack-cli": "^3.1.0",
     "webpack-dev-server": "^3.1.8",
-    "worker-loader": "^0.8.1",
+    "worker-loader": "^2.0.0",
     "workerize-loader": "^1.0.4"
   },
   "scripts": {

yarn.lock

@@ -1065,15 +1065,6 @@ ajv@^4.9.1:
     co "^4.6.0"
     json-stable-stringify "^1.0.1"
 
-ajv@^5.0.0:
-  version "5.2.2"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.2.2.tgz#47c68d69e86f5d953103b0074a9430dc63da5e39"
-  dependencies:
-    co "^4.6.0"
-    fast-deep-equal "^1.0.0"
-    json-schema-traverse "^0.3.0"
-    json-stable-stringify "^1.0.1"
-
 ajv@^5.1.0:
   version "5.5.2"
   resolved "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
@@ -1821,7 +1812,7 @@ brorand@^1.0.1:
 
 browser-image-size@^1.1.0:
   version "1.1.0"
-  resolved "https://registry.yarnpkg.com/browser-image-size/-/browser-image-size-1.1.0.tgz#476914a871749f05f66b023b21dd2ed4318ffbb7"
+  resolved "https://registry.npmjs.org/browser-image-size/-/browser-image-size-1.1.0.tgz#476914a871749f05f66b023b21dd2ed4318ffbb7"
   dependencies:
     object-url "^1.0.0"
 
@@ -4748,7 +4739,7 @@ loader-runner@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.0.tgz#f482aea82d543e07921700d5a46ef26fdac6b8a2"
 
-loader-utils@^1.0.2, loader-utils@^1.1.0:
+loader-utils@^1.0.0, loader-utils@^1.0.2, loader-utils@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.1.0.tgz#c98aef488bcceda2ffb5e2de646d6a754429f5cd"
   dependencies:
@@ -6325,13 +6316,7 @@ sax@>=0.6.0, sax@^1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
 
-schema-utils@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.3.0.tgz#f5877222ce3e931edae039f17eb3716e7137f8cf"
-  dependencies:
-    ajv "^5.0.0"
-
-schema-utils@^0.4.4, schema-utils@^0.4.5:
+schema-utils@^0.4.0, schema-utils@^0.4.4, schema-utils@^0.4.5:
   version "0.4.7"
   resolved "https://registry.npmjs.org/schema-utils/-/schema-utils-0.4.7.tgz#ba74f597d2be2ea880131746ee17d0a093c68187"
   dependencies:
@@ -7038,7 +7023,7 @@ uglify-es@^3.3.4:
     commander "~2.13.0"
     source-map "~0.6.1"
 
-uglify-js@^2.6, uglify-js@^2.8.29:
+uglify-js@^2.6:
   version "2.8.29"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.29.tgz#29c5733148057bb4e1f75df35b7a9cb72e6a59dd"
   dependencies:
@@ -7051,15 +7036,7 @@ uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
 
-uglifyjs-webpack-plugin@^0.4.6:
-  version "0.4.6"
-  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-0.4.6.tgz#b951f4abb6bd617e66f63eb891498e391763e309"
-  dependencies:
-    source-map "^0.5.6"
-    uglify-js "^2.8.29"
-    webpack-sources "^1.0.1"
-
-uglifyjs-webpack-plugin@^1.2.4:
+uglifyjs-webpack-plugin@^1.2.4, uglifyjs-webpack-plugin@^1.3.0:
   version "1.3.0"
   resolved "https://registry.npmjs.org/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.3.0.tgz#75f548160858163a08643e086d5fefe18a5d67de"
   dependencies:
@@ -7452,7 +7429,7 @@ wide-align@^1.1.0:
 
 window-or-global@^1.0.1:
   version "1.0.1"
-  resolved "https://registry.yarnpkg.com/window-or-global/-/window-or-global-1.0.1.tgz#dbe45ba2a291aabc56d62cf66c45b7fa322946de"
+  resolved "https://registry.npmjs.org/window-or-global/-/window-or-global-1.0.1.tgz#dbe45ba2a291aabc56d62cf66c45b7fa322946de"
 
 window-size@0.1.0:
   version "0.1.0"
@@ -7472,12 +7449,12 @@ worker-farm@^1.5.2:
   dependencies:
     errno "~0.1.7"
 
-worker-loader@^0.8.1:
-  version "0.8.1"
-  resolved "https://registry.yarnpkg.com/worker-loader/-/worker-loader-0.8.1.tgz#e8e995331ea34df5bf68296824bfb7f0ad578d43"
+worker-loader@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.npmjs.org/worker-loader/-/worker-loader-2.0.0.tgz#45fda3ef76aca815771a89107399ee4119b430ac"
   dependencies:
-    loader-utils "^1.0.2"
-    schema-utils "^0.3.0"
+    loader-utils "^1.0.0"
+    schema-utils "^0.4.0"
 
 workerize-loader@^1.0.4:
   version "1.0.4"