diff --git a/package.json b/package.json
index 4a25f9a1..97451685 100644
--- a/package.json
+++ b/package.json
@@ -155,7 +155,7 @@
     "babel-plugin-macros": "^3.0.0",
     "c8": "^7.5.0",
     "cheerio": "^1.0.0-rc.5",
-    "clean-css-loader": "^2.0.0",
+    "clean-css-loader": "^4.1.1",
     "codegen.macro": "^4.0.0",
     "coveralls": "^3.0.0",
     "css-loader": "^3.0.0",