diff --git a/package-lock.json b/package-lock.json
index 643d61e7ba..749c75cad7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -38,7 +38,7 @@
         "nodemon": "^2.0.20",
         "npm-run-all": "^4.1.5",
         "pa11y-ci": "^3.0.1",
-        "postcss": "^8.4.20",
+        "postcss": "^8.4.21",
         "postcss-cli": "^10.1.0",
         "postcss-focus": "^6.0.0",
         "postcss-list-style-safari-fix": "^1.0.0",
@@ -12005,9 +12005,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.20",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.20.tgz",
-      "integrity": "sha512-6Q04AXR1212bXr5fh03u8aAwbLxAQNGQ/Q1LNa0VfOI06ZAlhPHtQvE4OIdpj4kLThXilalPnmDSOD65DcHt+g==",
+      "version": "8.4.21",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.21.tgz",
+      "integrity": "sha512-tP7u/Sn/dVxK2NnruI4H9BG+x+Wxz6oeZ1cJ8P6G/PZY0IKk4k/63TDsQf2kQq3+qoJeLm2kIBUNlZe3zgb4Zg==",
       "dev": true,
       "funding": [
         {
@@ -26052,9 +26052,9 @@
       }
     },
     "postcss": {
-      "version": "8.4.20",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.20.tgz",
-      "integrity": "sha512-6Q04AXR1212bXr5fh03u8aAwbLxAQNGQ/Q1LNa0VfOI06ZAlhPHtQvE4OIdpj4kLThXilalPnmDSOD65DcHt+g==",
+      "version": "8.4.21",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.21.tgz",
+      "integrity": "sha512-tP7u/Sn/dVxK2NnruI4H9BG+x+Wxz6oeZ1cJ8P6G/PZY0IKk4k/63TDsQf2kQq3+qoJeLm2kIBUNlZe3zgb4Zg==",
       "dev": true,
       "requires": {
         "nanoid": "^3.3.4",
diff --git a/package.json b/package.json
index 73c9eb28d8..855272d461 100644
--- a/package.json
+++ b/package.json
@@ -86,7 +86,7 @@
     "nodemon": "^2.0.20",
     "npm-run-all": "^4.1.5",
     "pa11y-ci": "^3.0.1",
-    "postcss": "^8.4.20",
+    "postcss": "^8.4.21",
     "postcss-cli": "^10.1.0",
     "postcss-focus": "^6.0.0",
     "postcss-list-style-safari-fix": "^1.0.0",