diff --git a/package-lock.json b/package-lock.json
index f94cf480..c260a04d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,7 +27,7 @@
         "html-webpack-plugin": "5.6.6",
         "mini-css-extract-plugin": "2.10.2",
         "monaco-editor-webpack-plugin": "7.1.1",
-        "postcss": "8.5.8",
+        "postcss": "8.5.9",
         "postcss-loader": "8.2.1",
         "sass": "1.99.0",
         "sass-loader": "16.0.7",
@@ -2473,9 +2473,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.8",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.8.tgz",
-      "integrity": "sha512-OW/rX8O/jXnm82Ey1k44pObPtdblfiuWnrd8X7GJ7emImCOstunGbXUpp7HdBrFQX6rJzn3sPT397Wp5aCwCHg==",
+      "version": "8.5.9",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.9.tgz",
+      "integrity": "sha512-7a70Nsot+EMX9fFU3064K/kdHWZqGVY+BADLyXc8Dfv+mTLLVl6JzJpPaCZ2kQL9gIJvKXSLMHhqdRRjwQeFtw==",
       "dev": true,
       "funding": [
         {
diff --git a/package.json b/package.json
index e160b574..743961bb 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "html-webpack-plugin": "5.6.6",
     "mini-css-extract-plugin": "2.10.2",
     "monaco-editor-webpack-plugin": "7.1.1",
-    "postcss": "8.5.8",
+    "postcss": "8.5.9",
     "postcss-loader": "8.2.1",
     "sass": "1.99.0",
     "sass-loader": "16.0.7",