diff --git a/package.json b/package.json
index 146515cc..a71a435c 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "@heroicons/react": "^1.0.6",
     "gh-pages": "^6.1.1",
     "prettier": "^3.2.5",
-    "tailwindcss": "^3.4.3"
+    "tailwindcss": "^4.0.0"
   },
   "keywords": [
     "gatsby"