diff --git a/package-lock.json b/package-lock.json
index b73bc9099b..6d942bf138 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -37,7 +37,7 @@
         "monaco-editor": "0.52.2",
         "monaco-editor-webpack-plugin": "7.1.0",
         "pdfobject": "2.3.0",
-        "postcss": "8.5.4",
+        "postcss": "8.5.5",
         "postcss-loader": "8.1.1",
         "postcss-nesting": "13.0.2",
         "pretty-ms": "9.0.0",
@@ -11857,9 +11857,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.4",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.4.tgz",
-      "integrity": "sha512-QSa9EBe+uwlGTFmHsPKokv3B/oEMQZxfqW0QqNCyhpa6mB1afzulwn8hihglqAb2pOw+BJgNlmXQ8la2VeHB7w==",
+      "version": "8.5.5",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.5.tgz",
+      "integrity": "sha512-d/jtm+rdNT8tpXuHY5MMtcbJFBkhXE6593XVR9UoGCH8jSFGci7jGvMGH5RYd5PBJW+00NZQt6gf7CbagJCrhg==",
       "funding": [
         {
           "type": "opencollective",
diff --git a/package.json b/package.json
index d602a2613c..b5a1b6840f 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "monaco-editor": "0.52.2",
     "monaco-editor-webpack-plugin": "7.1.0",
     "pdfobject": "2.3.0",
-    "postcss": "8.5.4",
+    "postcss": "8.5.5",
     "postcss-loader": "8.1.1",
     "postcss-nesting": "13.0.2",
     "pretty-ms": "9.0.0",