diff --git a/sites/dev/package.json b/sites/dev/package.json
index d26a2a02e8f..70d6340d606 100644
--- a/sites/dev/package.json
+++ b/sites/dev/package.json
@@ -62,7 +62,7 @@
     "autoprefixer": "10.4.15",
     "eslint-config-next": "13.4.19",
     "js-yaml": "4.1.0",
-    "postcss": "8.4.29",
+    "postcss": "8.4.31",
     "remark-extract-frontmatter": "3.2.0",
     "remark-mdx-frontmatter": "3.0.0",
     "tailwindcss": "3.3.3",
diff --git a/sites/lab/package.json b/sites/lab/package.json
index 8ad732a362e..87f1bc7527a 100644
--- a/sites/lab/package.json
+++ b/sites/lab/package.json
@@ -66,7 +66,7 @@
     "autoprefixer": "10.4.15",
     "eslint-config-next": "13.4.19",
     "js-yaml": "4.1.0",
-    "postcss": "8.4.29",
+    "postcss": "8.4.31",
     "remark-extract-frontmatter": "3.2.0",
     "remark-mdx-frontmatter": "3.0.0",
     "tailwindcss": "3.3.3",
diff --git a/sites/org/package.json b/sites/org/package.json
index 0b16409be19..16190af54ab 100644
--- a/sites/org/package.json
+++ b/sites/org/package.json
@@ -69,7 +69,7 @@
     "autoprefixer": "10.4.15",
     "eslint-config-next": "13.4.19",
     "js-yaml": "4.1.0",
-    "postcss": "8.4.29",
+    "postcss": "8.4.31",
     "remark-extract-frontmatter": "3.2.0",
     "remark-mdx-frontmatter": "3.0.0",
     "tailwindcss": "3.3.3",
diff --git a/yarn.lock b/yarn.lock
index bac48eeb400..3d77e164a28 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11908,10 +11908,10 @@ postcss@8.4.14:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
-postcss@8.4.29, postcss@^8, postcss@^8.4.23:
-  version "8.4.29"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.29.tgz#33bc121cf3b3688d4ddef50be869b2a54185a1dd"
-  integrity sha512-cbI+jaqIeu/VGqXEarWkRCCffhjgXc0qjBtXpqJhTBohMUjUQnbBr0xqX3vEKudc4iviTewcJo5ajcec5+wdJw==
+postcss@8.4.31, postcss@^8, postcss@^8.4.23, postcss@^8.4.5:
+  version "8.4.31"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.31.tgz#92b451050a9f914da6755af352bdc0192508656d"
+  integrity sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==
   dependencies:
     nanoid "^3.3.6"
     picocolors "^1.0.0"
@@ -11927,15 +11927,6 @@ postcss@^5.0.0, postcss@^5.0.21:
     source-map "^0.5.6"
     supports-color "^3.2.3"
 
-postcss@^8.4.5:
-  version "8.4.31"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.31.tgz#92b451050a9f914da6755af352bdc0192508656d"
-  integrity sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==
-  dependencies:
-    nanoid "^3.3.6"
-    picocolors "^1.0.0"
-    source-map-js "^1.0.2"
-
 preact@^10.10.0:
   version "10.16.0"
   resolved "https://registry.yarnpkg.com/preact/-/preact-10.16.0.tgz#68a06d70b191b8a313ea722d61e09c6b2a79a37e"