diff --git a/package.json b/package.json
index 9d73a17..af37dad 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "jest-serializer-vue": "^0.3.0",
     "nightwatch": "^0.9.12",
     "node-notifier": "^5.1.2",
-    "optimize-css-assets-webpack-plugin": "^3.2.0",
+    "optimize-css-assets-webpack-plugin": "^4.0.0",
     "ora": "^1.2.0",
     "portfinder": "^1.0.13",
     "postcss-import": "^11.0.0",
diff --git a/yarn.lock b/yarn.lock
index 2dd6b22..c8b8603 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1715,7 +1715,7 @@ compressible@~2.0.13:
 
 compression@^1.5.2:
   version "1.7.2"
-  resolved "http://registry.npmjs.org/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
+  resolved "https://registry.npmjs.org/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
   dependencies:
     accepts "~1.3.4"
     bytes "3.0.0"
@@ -4476,12 +4476,12 @@ kind-of@^6.0.0, kind-of@^6.0.2:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
 
-last-call-webpack-plugin@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/last-call-webpack-plugin/-/last-call-webpack-plugin-2.1.2.tgz#ad80c6e310998294d2ed2180a68e9589e4768c44"
+last-call-webpack-plugin@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/last-call-webpack-plugin/-/last-call-webpack-plugin-3.0.0.tgz#9742df0e10e3cf46e5c0381c2de90d3a7a2d7555"
   dependencies:
-    lodash "^4.17.4"
-    webpack-sources "^1.0.1"
+    lodash "^4.17.5"
+    webpack-sources "^1.1.0"
 
 lazy-cache@^1.0.3:
   version "1.0.4"
@@ -5359,12 +5359,12 @@ optimist@0.6.1, optimist@^0.6.1:
     minimist "~0.0.1"
     wordwrap "~0.0.2"
 
-optimize-css-assets-webpack-plugin@^3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/optimize-css-assets-webpack-plugin/-/optimize-css-assets-webpack-plugin-3.2.0.tgz#09a40c4cefde1dd0142444a873c56aa29eb18e6f"
+optimize-css-assets-webpack-plugin@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/optimize-css-assets-webpack-plugin/-/optimize-css-assets-webpack-plugin-4.0.0.tgz#d5f80041fb1391b358a1f35273c3b53de814e8fe"
   dependencies:
     cssnano "^3.4.0"
-    last-call-webpack-plugin "^2.1.2"
+    last-call-webpack-plugin "^3.0.0"
 
 optionator@^0.8.1, optionator@^0.8.2:
   version "0.8.2"