diff --git a/core/core.libraries.yml b/core/core.libraries.yml
index e2b2c4d3d5..d54ba0d545 100644
--- a/core/core.libraries.yml
+++ b/core/core.libraries.yml
@@ -163,9 +163,6 @@ ckeditor5.language:
   remote: *ckeditor5Remote
   version: *ckeditor5Version
   license: *ckeditor5License
-  css:
-    component:
-      css/language.css: {}
   js:
     assets/vendor/ckeditor5/build/language.js: { preprocess: false, minified: true }
   dependencies: