diff --git a/sites/dev/package.json b/sites/dev/package.json
index 3f30652c96b..faf0049d928 100644
--- a/sites/dev/package.json
+++ b/sites/dev/package.json
@@ -61,7 +61,7 @@
   "devDependencies": {
     "autoprefixer": "10.4.18",
     "js-yaml": "4.1.0",
-    "postcss": "8.4.36",
+    "postcss": "8.4.37",
     "remark-extract-frontmatter": "3.2.0",
     "remark-mdx-frontmatter": "4.0.0",
     "tailwindcss": "3.4.1",
diff --git a/sites/lab/package.json b/sites/lab/package.json
index 0f28f449229..c9f76b49bb3 100644
--- a/sites/lab/package.json
+++ b/sites/lab/package.json
@@ -62,7 +62,7 @@
   "devDependencies": {
     "autoprefixer": "10.4.18",
     "js-yaml": "4.1.0",
-    "postcss": "8.4.36",
+    "postcss": "8.4.37",
     "remark-extract-frontmatter": "3.2.0",
     "remark-mdx-frontmatter": "4.0.0",
     "tailwindcss": "3.4.1",
diff --git a/sites/org/package.json b/sites/org/package.json
index 25f662c3bd7..1672f97c284 100644
--- a/sites/org/package.json
+++ b/sites/org/package.json
@@ -69,7 +69,7 @@
   "devDependencies": {
     "autoprefixer": "10.4.18",
     "js-yaml": "4.1.0",
-    "postcss": "8.4.36",
+    "postcss": "8.4.37",
     "remark-extract-frontmatter": "3.2.0",
     "remark-mdx-frontmatter": "4.0.0",
     "tailwindcss": "3.4.1",
diff --git a/yarn.lock b/yarn.lock
index accca58196f..88b81b72bf1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11357,14 +11357,14 @@ postcss@8.4.31:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
-postcss@8.4.36, postcss@^8.4.23:
-  version "8.4.36"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.36.tgz#dba513c3c3733c44e0288a712894f8910bbaabc6"
-  integrity sha512-/n7eumA6ZjFHAsbX30yhHup/IMkOmlmvtEi7P+6RMYf+bGJSUHc3geH4a0NSZxAz/RJfiS9tooCTs9LAVYUZKw==
+postcss@8.4.37, postcss@^8.4.23:
+  version "8.4.37"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.37.tgz#4505f992cd0c20e03d25f13b31901640b2db731a"
+  integrity sha512-7iB/v/r7Woof0glKLH8b1SPHrsX7uhdO+Geb41QpF/+mWZHU3uxxSlN+UXGVit1PawOYDToO+AbZzhBzWRDwbQ==
   dependencies:
     nanoid "^3.3.7"
     picocolors "^1.0.0"
-    source-map-js "^1.1.0"
+    source-map-js "^1.2.0"
 
 postcss@^5.0.0, postcss@^5.0.21:
   version "5.2.18"
@@ -12700,10 +12700,10 @@ sort-keys@^2.0.0:
   dependencies:
     is-plain-obj "^1.0.0"
 
-source-map-js@^1.0.2, source-map-js@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.1.0.tgz#9e7d5cb46f0689fb6691b30f226937558d0fa94b"
-  integrity sha512-9vC2SfsJzlej6MAaMPLu8HiBSHGdRAJ9hVFYN1ibZoNkeanmDmLUcIrj6G9DGL7XMJ54AKg/G75akXl1/izTOw==
+source-map-js@^1.0.2, source-map-js@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.2.0.tgz#16b809c162517b5b8c3e7dcd315a2a5c2612b2af"
+  integrity sha512-itJW8lvSA0TXEphiRoawsCksnlf8SyvmFzIhltqAHluXd88pkCd+cXJVHTDwdCr0IzwptSm035IHQktUu1QUMg==
 
 source-map@^0.5.6:
   version "0.5.7"