diff --git a/package-lock.json b/package-lock.json
index e90a1d51..72cd01ec 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -100,7 +100,7 @@
         "istanbul": "^0.4.5",
         "istanbul-lib-coverage": "^3.2.2",
         "nyc": "^18.0.0",
-        "postcss": "^8.5.20",
+        "postcss": "^8.5.21",
         "react-hot-loader": "^4.13.1",
         "sass": "^1.101.3",
         "stylelint": "^17.14.1",
@@ -10742,9 +10742,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.20",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.20.tgz",
-      "integrity": "sha512-lW616l85ucIQL+FocMmL7pQFPqBmwejrCMg+iPxyImlrANNJG9NHq/RkyCZopDhd8C3LA03PHRJDjkbGu8vvug==",
+      "version": "8.5.21",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.21.tgz",
+      "integrity": "sha512-v4sDNP3fdNiWMfabO7OwOQdOX8TiQSztKyT1Wj0w+j7LDallJThJRBBBmzVGyYj0crMh7jlV4zepPkiNu9UwDQ==",
       "dev": true,
       "funding": [
         {
diff --git a/package.json b/package.json
index 36adfbad..c790f06e 100644
--- a/package.json
+++ b/package.json
@@ -134,7 +134,7 @@
     "istanbul": "^0.4.5",
     "istanbul-lib-coverage": "^3.2.2",
     "nyc": "^18.0.0",
-    "postcss": "^8.5.20",
+    "postcss": "^8.5.21",
     "react-hot-loader": "^4.13.1",
     "sass": "^1.101.3",
     "stylelint": "^17.14.1",