diff --git a/package.json b/package.json
index 92253af8..a870ec2b 100644
--- a/package.json
+++ b/package.json
@@ -77,7 +77,7 @@
         "monaco-themes": "^0.4.2",
         "mq-polyfill": "1.1.8",
         "navigator.locks": "^0.8.6",
-        "postcss": "^8.4.17",
+        "postcss": "^8.4.18",
         "postcss-flexbugs-fixes": "^5.0.2",
         "postcss-loader": "^7.0.1",
         "postcss-normalize": "^10.0.1",
diff --git a/yarn.lock b/yarn.lock
index 99a7ae07..0ebe7391 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2484,7 +2484,7 @@ __metadata:
     monaco-themes: ^0.4.2
     mq-polyfill: 1.1.8
     navigator.locks: ^0.8.6
-    postcss: ^8.4.17
+    postcss: ^8.4.18
     postcss-flexbugs-fixes: ^5.0.2
     postcss-loader: ^7.0.1
     postcss-normalize: ^10.0.1
@@ -12432,14 +12432,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:^8.2.14, postcss@npm:^8.4.14, postcss@npm:^8.4.17, postcss@npm:^8.4.7":
-  version: 8.4.17
-  resolution: "postcss@npm:8.4.17"
+"postcss@npm:^8.2.14, postcss@npm:^8.4.14, postcss@npm:^8.4.17, postcss@npm:^8.4.18, postcss@npm:^8.4.7":
+  version: 8.4.18
+  resolution: "postcss@npm:8.4.18"
   dependencies:
     nanoid: ^3.3.4
     picocolors: ^1.0.0
     source-map-js: ^1.0.2
-  checksum: a6d9096dd711e17f7b1d18ff5dcb4fdedf3941d5a3dc8b0e4ea873b8f31972d57f73d6da9a8aed7ff389eb52190ed34f6a94f299a7f5ddc68b08a24a48f77eb9
+  checksum: 9349fd99849b2e3d2e134ff949b7770ecb12375f352723ce2bcc06167eba3850ea7844c1b191a85cd915d6a396b4e8ee9a5267e6cc5d8d003d0cbc7a97555d39
   languageName: node
   linkType: hard