diff --git a/themes-default/slim/package.json b/themes-default/slim/package.json
index 2dce4ce58a..17117ee013 100644
--- a/themes-default/slim/package.json
+++ b/themes-default/slim/package.json
@@ -101,7 +101,7 @@
     "jest": "26.6.1",
     "jest-serializer-vue": "2.0.2",
     "jest-vue-matcher": "2.0.0",
-    "mini-css-extract-plugin": "1.2.0",
+    "mini-css-extract-plugin": "1.2.1",
     "nyc": "15.1.0",
     "optimize-css-assets-webpack-plugin": "5.0.4",
     "stylelint": "13.7.2",
diff --git a/themes-default/slim/yarn.lock b/themes-default/slim/yarn.lock
index ccbc6c1f26..4c4c5166e6 100644
--- a/themes-default/slim/yarn.lock
+++ b/themes-default/slim/yarn.lock
@@ -8474,10 +8474,10 @@ min-indent@^1.0.0:
   resolved "https://registry.yarnpkg.com/min-indent/-/min-indent-1.0.0.tgz#cfc45c37e9ec0d8f0a0ec3dd4ef7f7c3abe39256"
   integrity sha1-z8RcN+nsDY8KDsPdTvf3w6vjklY=
 
-mini-css-extract-plugin@1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-1.2.0.tgz#f1bdfa7bb6f6a238bc327f813f204283ea33ee36"
-  integrity sha512-iBZokjaIjHvI4N0AURx5aPBawcmxB/d2NYikxZ4J57Lg5sDShUPyWvuSWl1dueI5oCs7nz8V7qtOCaLjB7AYPw==
+mini-css-extract-plugin@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-1.2.1.tgz#30ea7dee632b3002b0c77aeed447790408cb247e"
+  integrity sha512-G3yw7/TQaPfkuiR73MDcyiqhyP8SnbmLhUbpC76H+wtQxA6wfKhMCQOCb6wnPK0dQbjORAeOILQqEesg4/wF7A==
   dependencies:
     loader-utils "^2.0.0"
     schema-utils "^3.0.0"