diff --git a/CHANGELOG.md b/CHANGELOG.md
index bcfe7e57..8f73a4da 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Monaco Editor Changelog
 
+## [0.21.2] (27.09.2020)
+
+Fixes [a regression in monaco-css](https://github.com/microsoft/monaco-editor/issues/2158).
+
 ## [0.21.1] (24.09.2020)
 
 Fixes [a few regressions](https://github.com/microsoft/monaco-editor/issues?q=is%3Aissue+milestone%3A%22August+2020+%282%29%22+is%3Aclosed).
diff --git a/package-lock.json b/package-lock.json
index 813fee98..7432ff32 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4357,9 +4357,9 @@
       }
     },
     "monaco-css": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/monaco-css/-/monaco-css-3.1.0.tgz",
-      "integrity": "sha512-//0qqewilkw8S5H7lOV5rRF9ba2tKXVXKv3bYmZRJ+sT0gaVmWghoEt+F5CIx/m9GSFeDtn70JDtyD+ftl/+Hg==",
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/monaco-css/-/monaco-css-3.1.1.tgz",
+      "integrity": "sha512-wY69hjK3sF4bq5/+oYMqtl4YF86XyioXvpkEmMnayLiJlWdVBImWHJoS1lEmXrHscYFxK/mF3Uo1t0JbIsM2mA==",
       "dev": true
     },
     "monaco-editor-core": {
diff --git a/package.json b/package.json
index 1dffc55b..c0022ac6 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "gulp": "^4.0.2",
     "gulp-typedoc": "^2.2.5",
     "mocha": "^8.1.3",
-    "monaco-css": "3.1.0",
+    "monaco-css": "3.1.1",
     "monaco-editor-core": "0.21.2",
     "monaco-html": "3.1.1",
     "monaco-json": "3.2.1",