diff --git a/demo/package.json b/demo/package.json
index 34587e102..523430f9e 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -32,7 +32,7 @@
     "express": "^4.17.3",
     "html-webpack-plugin": "^5.3.2",
     "jest": "^26.6.3",
-    "mini-css-extract-plugin": "^1.4.0",
+    "mini-css-extract-plugin": "^2.7.6",
     "prettier": "^2.2.1",
     "process": "0.11.10",
     "rimraf": "^3.0.2",
diff --git a/yarn.lock b/yarn.lock
index d2411c4d9..9196ebec7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -16198,14 +16198,12 @@ mini-create-react-context@^0.4.0:
     "@babel/runtime" "^7.12.1"
     tiny-warning "^1.0.3"
 
-mini-css-extract-plugin@^1.4.0:
-  version "1.6.2"
-  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-1.6.2.tgz#83172b4fd812f8fc4a09d6f6d16f924f53990ca8"
-  integrity sha512-WhDvO3SjGm40oV5y26GjMJYjd2UMqrLAGKy5YS2/3QKJy2F7jgynuHTir/tgUUOiNQu5saXHdc8reo7YuhhT4Q==
+mini-css-extract-plugin@^2.7.6:
+  version "2.7.6"
+  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-2.7.6.tgz#282a3d38863fddcd2e0c220aaed5b90bc156564d"
+  integrity sha512-Qk7HcgaPkGG6eD77mLvZS1nmxlao3j+9PkrT9Uc7HAE1id3F41+DdBRYRYkbyfNRGzm8/YWtzhw7nVPmwhqTQw==
   dependencies:
-    loader-utils "^2.0.0"
-    schema-utils "^3.0.0"
-    webpack-sources "^1.1.0"
+    schema-utils "^4.0.0"
 
 minimalistic-assert@^1.0.0:
   version "1.0.1"
@@ -20211,16 +20209,7 @@ scheduler@^0.19.1:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
 
-schema-utils@^3.0.0, schema-utils@^3.1.0, schema-utils@^3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-3.1.1.tgz#bc74c4b6b6995c1d88f76a8b77bea7219e0c8281"
-  integrity sha512-Y5PQxS4ITlC+EahLuXaY86TXfR7Dc5lw294alXOq86JAHCihAIZfqv8nNCWvaEJvaC51uN9hbLGeV0cFBdH+Fw==
-  dependencies:
-    "@types/json-schema" "^7.0.8"
-    ajv "^6.12.5"
-    ajv-keywords "^3.5.2"
-
-schema-utils@^3.2.0:
+schema-utils@^3.0.0, schema-utils@^3.1.0, schema-utils@^3.1.1, schema-utils@^3.2.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-3.3.0.tgz#f50a88877c3c01652a15b622ae9e9795df7a60fe"
   integrity sha512-pN/yOAvcC+5rQ5nERGuwrjLlYvLTbCibnZ1I7B1LaiAz9BRBlE9GMgE/eqV30P7aJQUf7Ddimy/RsbYO/GrVGg==
@@ -20700,11 +20689,6 @@ sorted-union-stream@~2.1.3:
     from2 "^1.3.0"
     stream-iterate "^1.1.0"
 
-source-list-map@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
-  integrity sha512-qnQ7gVMxGNxsiL4lEuJwe/To8UnK7fAnmbGEEH8RpLouuKbeEm0lhbQVFIrNSuB+G7tVrAlVsZgETT5nljf+Iw==
-
 source-map-js@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.2.tgz#adbc361d9c62df380125e7f161f71c826f1e490c"
@@ -22851,14 +22835,6 @@ webpack-merge@^5.7.3:
     clone-deep "^4.0.1"
     wildcard "^2.0.0"
 
-webpack-sources@^1.1.0:
-  version "1.4.3"
-  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.4.3.tgz#eedd8ec0b928fbf1cbfe994e22d2d890f330a933"
-  integrity sha512-lgTS3Xhv1lCOKo7SA5TjKXMjpSM4sBjNV5+q2bqesbSPs5FjGmU6jjtBSkX9b4qW87vDIsCIlUPOEhbZrMdjeQ==
-  dependencies:
-    source-list-map "^2.0.0"
-    source-map "~0.6.1"
-
 webpack-sources@^3.2.3:
   version "3.2.3"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-3.2.3.tgz#2d4daab8451fd4b240cc27055ff6a0c2ccea0cde"