diff --git a/html/package.json b/html/package.json
index 2f15085..c57d41a 100644
--- a/html/package.json
+++ b/html/package.json
@@ -33,7 +33,7 @@
   },
   "devDependencies": {
     "copy-webpack-plugin": "^6.0.3",
-    "css-loader": "^4.2.0",
+    "css-loader": "^4.2.1",
     "gts": "^1.1.2",
     "gulp": "^4.0.2",
     "gulp-clean": "^0.4.0",
diff --git a/html/yarn.lock b/html/yarn.lock
index 7c4d280..069a146 100644
--- a/html/yarn.lock
+++ b/html/yarn.lock
@@ -1822,10 +1822,10 @@ css-declaration-sorter@^4.0.1:
     postcss "^7.0.1"
     timsort "^0.3.0"
 
-css-loader@^4.2.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/css-loader/-/css-loader-4.2.0.tgz#b57efb92ac8f0cd85bf92d89df9634ef1f51b8bf"
-  integrity sha512-ko7a9b0iFpWtk9eSI/C8IICvZeGtYnjxYjw45rJprokXj/+kBd/siX4vAIBq9Uij8Jubc4jL1EvSnTjCEwaHSw==
+css-loader@^4.2.1:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/css-loader/-/css-loader-4.2.1.tgz#9f48fd7eae1219d629a3f085ba9a9102ca1141a7"
+  integrity sha512-MoqmF1if7Z0pZIEXA4ZF9PgtCXxWbfzfJM+3p+OYfhcrwcqhaCRb74DSnfzRl7e024xEiCRn5hCvfUbTf2sgFA==
   dependencies:
     camelcase "^6.0.0"
     cssesc "^3.0.0"