diff --git a/package.json b/package.json
index b779c6d52bbf..9639963ac426 100644
--- a/package.json
+++ b/package.json
@@ -189,7 +189,7 @@
     "pidusage": "^2.0.17",
     "pnp-webpack-plugin": "1.6.4",
     "popper.js": "^1.14.1",
-    "postcss": "8.2.3",
+    "postcss": "8.2.4",
     "postcss-import": "14.0.0",
     "postcss-loader": "4.1.0",
     "prettier": "^2.0.0",
diff --git a/packages/angular_devkit/build_angular/package.json b/packages/angular_devkit/build_angular/package.json
index 3d08c896e833..8c32fddc1946 100644
--- a/packages/angular_devkit/build_angular/package.json
+++ b/packages/angular_devkit/build_angular/package.json
@@ -47,7 +47,7 @@
     "ora": "5.2.0",
     "parse5-html-rewriting-stream": "6.0.1",
     "pnp-webpack-plugin": "1.6.4",
-    "postcss": "8.2.3",
+    "postcss": "8.2.4",
     "postcss-import": "14.0.0",
     "postcss-loader": "4.1.0",
     "raw-loader": "4.0.2",
diff --git a/yarn.lock b/yarn.lock
index 808cb23f088d..ac321e52e6e1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9584,10 +9584,10 @@ postcss@7.0.21:
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@8.2.3:
-  version "8.2.3"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.2.3.tgz#14ed1294850c99661761d9cb68863718eb75690d"
-  integrity sha512-tdmNCCmxJEsLZNj810qlj8QbvnUNKFL9A5doV+uHrGGK/YNKWEslrytnHDWr9M/GgGjfUFwXCRbxd/b6IoRBXQ==
+postcss@8.2.4:
+  version "8.2.4"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.2.4.tgz#20a98a39cf303d15129c2865a9ec37eda0031d04"
+  integrity sha512-kRFftRoExRVXZlwUuay9iC824qmXPcQQVzAjbCCgjpXnkdMCJYBu2gTwAaFBzv8ewND6O8xFb3aELmEkh9zTzg==
   dependencies:
     colorette "^1.2.1"
     nanoid "^3.1.20"