diff --git a/package.json b/package.json
index 2c8711f367..d6ab21393b 100644
--- a/package.json
+++ b/package.json
@@ -417,7 +417,7 @@
     "node-loader": "^2.0.0",
     "nodemon": "^2.0.20",
     "playwright": "^1.29.1",
-    "postcss": "^8.4.20",
+    "postcss": "^8.4.21",
     "postcss-loader": "^6.2.1",
     "query-string": "^7.1.3",
     "randomcolor": "^0.6.2",
diff --git a/yarn.lock b/yarn.lock
index 1a371cb5fe..e57a17efef 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10850,10 +10850,10 @@ postcss@^6.0.14, postcss@^6.0.2:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
-postcss@^8.3.0, postcss@^8.4.18, postcss@^8.4.19, postcss@^8.4.20:
-  version "8.4.20"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.20.tgz#64c52f509644cecad8567e949f4081d98349dc56"
-  integrity sha512-6Q04AXR1212bXr5fh03u8aAwbLxAQNGQ/Q1LNa0VfOI06ZAlhPHtQvE4OIdpj4kLThXilalPnmDSOD65DcHt+g==
+postcss@^8.3.0, postcss@^8.4.18, postcss@^8.4.19, postcss@^8.4.21:
+  version "8.4.21"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.21.tgz#c639b719a57efc3187b13a1d765675485f4134f4"
+  integrity sha512-tP7u/Sn/dVxK2NnruI4H9BG+x+Wxz6oeZ1cJ8P6G/PZY0IKk4k/63TDsQf2kQq3+qoJeLm2kIBUNlZe3zgb4Zg==
   dependencies:
     nanoid "^3.3.4"
     picocolors "^1.0.0"