diff --git a/package.json b/package.json
index 017652d7..3decbdfa 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": "^8.4.16",
+        "postcss": "^8.4.17",
         "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 8c1aef1f..609589c7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2491,7 +2491,7 @@ __metadata:
     monaco-themes: ^0.4.2
     mq-polyfill: 1.1.8
     navigator.locks: ^0.8.6
-    postcss: ^8.4.16
+    postcss: ^8.4.17
     postcss-flexbugs-fixes: ^5.0.2
     postcss-loader: ^7.0.1
     postcss-normalize: ^10.0.1
@@ -12500,14 +12500,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:^8.2.14, postcss@npm:^8.4.13, postcss@npm:^8.4.14, postcss@npm:^8.4.16, postcss@npm:^8.4.7":
-  version: 8.4.16
-  resolution: "postcss@npm:8.4.16"
+"postcss@npm:^8.2.14, postcss@npm:^8.4.13, 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"
   dependencies:
     nanoid: ^3.3.4
     picocolors: ^1.0.0
     source-map-js: ^1.0.2
-  checksum: 10eee25efd77868036403858577da0cefaf2e0905feeaba5770d5438ccdddba3d01cba8063e96b8aac4c6daa0ed413dd5ae0554a433a3c4db38df1d134cffc1f
+  checksum: a6d9096dd711e17f7b1d18ff5dcb4fdedf3941d5a3dc8b0e4ea873b8f31972d57f73d6da9a8aed7ff389eb52190ed34f6a94f299a7f5ddc68b08a24a48f77eb9
   languageName: node
   linkType: hard