diff --git a/package-lock.json b/package-lock.json
index 75e63a6..e9a7005 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
         "elm-review": "^2.12.0",
         "elm-tailwind-modules": "^0.5.0",
         "elm-test": "^0.19.1-revision12",
-        "postcss": "^8.5.1",
+        "postcss": "^8.5.3",
         "tailwindcss": "^3.4.17"
       }
     },
@@ -3250,9 +3250,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.1",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.1.tgz",
-      "integrity": "sha512-6oz2beyjc5VMn/KV1pPw8fliQkhBXrVn1Z3TVyqZxU8kZpzEKhBdmCFqI6ZbmGtamQvQGuU1sgPTk8ZrXDD7jQ==",
+      "version": "8.5.3",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.3.tgz",
+      "integrity": "sha512-dle9A3yYxlBSrt8Fu+IpjGT8SY8hN0mlaA6GY8t0P5PjIOZemULz/E2Bnm/2dcUOena75OTNkHI76uZBNUUq3A==",
       "dev": true,
       "funding": [
         {
@@ -3268,6 +3268,7 @@
           "url": "https://github.com/sponsors/ai"
         }
       ],
+      "license": "MIT",
       "dependencies": {
         "nanoid": "^3.3.8",
         "picocolors": "^1.1.1",
@@ -6627,9 +6628,9 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.5.1",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.1.tgz",
-      "integrity": "sha512-6oz2beyjc5VMn/KV1pPw8fliQkhBXrVn1Z3TVyqZxU8kZpzEKhBdmCFqI6ZbmGtamQvQGuU1sgPTk8ZrXDD7jQ==",
+      "version": "8.5.3",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.3.tgz",
+      "integrity": "sha512-dle9A3yYxlBSrt8Fu+IpjGT8SY8hN0mlaA6GY8t0P5PjIOZemULz/E2Bnm/2dcUOena75OTNkHI76uZBNUUq3A==",
       "dev": true,
       "requires": {
         "nanoid": "^3.3.8",
diff --git a/package.json b/package.json
index 685b449..3f271f4 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
     "elm-review": "^2.12.0",
     "elm-tailwind-modules": "^0.5.0",
     "elm-test": "^0.19.1-revision12",
-    "postcss": "^8.5.1",
+    "postcss": "^8.5.3",
     "tailwindcss": "^3.4.17"
   },
   "dependencies": {