diff --git a/package.json b/package.json
index 90d68c89..193f4ded 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "devDependencies": {
         "@eslint/eslintrc": "3.3.3",
         "@eslint/js": "9.39.2",
-        "@tailwindcss/postcss": "4.1.17",
+        "@tailwindcss/postcss": "4.1.18",
         "@tailwindcss/vite": "4.1.18",
         "@types/chai": "5.2.3",
         "@types/chai-as-promised": "8.0.2",