diff --git a/package.json b/package.json
index 0b11afc..473a010 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
         "remark-gfm": "^4.0.0",
         "remark-smartypants": "^3.0.2",
         "rollup": "^4.40.2",
-        "tailwindcss": "^3.4.17",
+        "tailwindcss": "^4.0.0",
         "typescript": "^5.8.3"
     },
     "optionalDependencies": {