diff --git a/package.json b/package.json
index f483446..967e68a 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
         "remark-mdx": "^3.1.0",
         "shiki": "^3.2.2",
         "simple-functional-loader": "^1.2.1",
-        "tailwindcss": "^3.4.17",
+        "tailwindcss": "^4.1.4",
         "typescript": "^5.8.3",
         "unist-util-filter": "^5.0.1",
         "unist-util-visit": "^5.0.0",