diff --git a/package.json b/package.json
index 2425dd38e9..15649c7d49 100644
--- a/package.json
+++ b/package.json
@@ -97,7 +97,6 @@
     "@formatjs/cli": "^6.0.0",
     "@types/autosize": "^4.0.1",
     "@types/blueimp-md5": "^2.18.0",
-    "@types/clean-css": "^4.2.2",
     "@types/jquery": "^3.3.31",
     "@types/jquery.validation": "^1.16.7",
     "@types/katex": "^0.16.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 7931b0d218..0482a277e5 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -297,9 +297,6 @@ devDependencies:
   '@types/blueimp-md5':
     specifier: ^2.18.0
     version: 2.18.2
-  '@types/clean-css':
-    specifier: ^4.2.2
-    version: 4.2.11
   '@types/jquery':
     specifier: ^3.3.31
     version: 3.5.29
@@ -3014,13 +3011,6 @@ packages:
     dependencies:
       '@types/node': 20.11.30
 
-  /@types/clean-css@4.2.11:
-    resolution: {integrity: sha512-Y8n81lQVTAfP2TOdtJJEsCoYl1AnOkqDqMvXb9/7pfgZZ7r8YrEyurrAvAoAjHOGXKRybay+5CsExqIH6liccw==}
-    dependencies:
-      '@types/node': 20.11.30
-      source-map: /source-map-js@1.0.1
-    dev: true
-
   /@types/co-body@6.1.3:
     resolution: {integrity: sha512-UhuhrQ5hclX6UJctv5m4Rfp52AfG9o9+d9/HwjxhVB5NjXxr5t9oKgJxN8xRHgr35oo8meUEHUPFWiKg6y71aA==}
     dependencies: