diff --git a/packages/webpack-config/package.json b/packages/webpack-config/package.json
index 28d1c79..52b5d4c 100644
--- a/packages/webpack-config/package.json
+++ b/packages/webpack-config/package.json
@@ -19,7 +19,7 @@
     "css-loader": "^2.0.0",
     "cssnano": "^4.0.5",
     "file-loader": "3.0.1",
-    "mini-css-extract-plugin": "^0.6.0",
+    "mini-css-extract-plugin": "^0.12.0",
     "node-sass": "^4.9.0",
     "postcss-loader": "^3.0.0",
     "sass-loader": "^7.0.1",
diff --git a/yarn.lock b/yarn.lock
index 05bd09d..0ecedb1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6699,13 +6699,13 @@ mimic-fn@^2.0.0:
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
   integrity sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==
 
-mini-css-extract-plugin@^0.6.0:
-  version "0.6.0"
-  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-0.6.0.tgz#a3f13372d6fcde912f3ee4cd039665704801e3b9"
-  integrity sha512-79q5P7YGI6rdnVyIAV4NXpBQJFWdkzJxCim3Kog4078fM0piAaFlwocqbejdWtLW1cEzCexPrh6EdyFsPgVdAw==
+mini-css-extract-plugin@^0.12.0:
+  version "0.12.0"
+  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-0.12.0.tgz#ddeb74fd6304ca9f99c1db74acc7d5b507705454"
+  integrity sha512-z6PQCe9rd1XUwZ8gMaEVwwRyZlrYy8Ba1gRjFP5HcV51HkXX+XlwZ+a1iAYTjSYwgNBXoNR7mhx79mDpOn5fdw==
   dependencies:
     loader-utils "^1.1.0"
-    normalize-url "^2.0.1"
+    normalize-url "1.9.1"
     schema-utils "^1.0.0"
     webpack-sources "^1.1.0"
 
@@ -7126,14 +7126,15 @@ normalize-selector@^0.2.0:
   resolved "https://registry.yarnpkg.com/normalize-selector/-/normalize-selector-0.2.0.tgz#d0b145eb691189c63a78d201dc4fdb1293ef0c03"
   integrity sha1-0LFF62kRicY6eNIB3E/bEpPvDAM=
 
-normalize-url@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-2.0.1.tgz#835a9da1551fa26f70e92329069a23aa6574d7e6"
-  integrity sha512-D6MUW4K/VzoJ4rJ01JFKxDrtY1v9wrgzCX5f2qj/lzH1m/lW6MhUZFKerVsnyjOhOsYzI9Kqqak+10l4LvLpMw==
+normalize-url@1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-1.9.1.tgz#2cc0d66b31ea23036458436e3620d85954c66c3c"
+  integrity sha1-LMDWazHqIwNkWENuNiDYWVTGbDw=
   dependencies:
-    prepend-http "^2.0.0"
-    query-string "^5.0.1"
-    sort-keys "^2.0.0"
+    object-assign "^4.0.1"
+    prepend-http "^1.0.0"
+    query-string "^4.1.0"
+    sort-keys "^1.0.0"
 
 normalize-url@^3.0.0, normalize-url@^3.3.0:
   version "3.3.0"
@@ -8251,10 +8252,10 @@ prelude-ls@~1.1.2:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
   integrity sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=
 
-prepend-http@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
-  integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
+prepend-http@^1.0.0:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
+  integrity sha1-1PRWKwzjaW5BrFLQ4ALlemNdxtw=
 
 prettier@1.16.3:
   version "1.16.3"
@@ -8412,12 +8413,11 @@ qs@6.5.2, qs@~6.5.2:
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
   integrity sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==
 
-query-string@^5.0.1:
-  version "5.1.1"
-  resolved "https://registry.yarnpkg.com/query-string/-/query-string-5.1.1.tgz#a78c012b71c17e05f2e3fa2319dd330682efb3cb"
-  integrity sha512-gjWOsm2SoGlgLEdAGt7a6slVOk9mGiXmPFMqrEhLQ68rhQuBnpfs3+EmlvqKyxnCo9/PPlF+9MtY02S1aFg+Jw==
+query-string@^4.1.0:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/query-string/-/query-string-4.3.4.tgz#bbb693b9ca915c232515b228b1a02b609043dbeb"
+  integrity sha1-u7aTucqRXCMlFbIosaArYJBD2+s=
   dependencies:
-    decode-uri-component "^0.2.0"
     object-assign "^4.1.0"
     strict-uri-encode "^1.0.0"
 
@@ -9354,6 +9354,13 @@ socks@~2.3.2:
     ip "^1.1.5"
     smart-buffer "4.0.2"
 
+sort-keys@^1.0.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/sort-keys/-/sort-keys-1.1.2.tgz#441b6d4d346798f1b4e49e8920adfba0e543f9ad"
+  integrity sha1-RBttTTRnmPG05J6JIK37oOVD+a0=
+  dependencies:
+    is-plain-obj "^1.0.0"
+
 sort-keys@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/sort-keys/-/sort-keys-2.0.0.tgz#658535584861ec97d730d6cf41822e1f56684128"