diff --git a/package.json b/package.json
index 05fde29..d8556c3 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "codemirror": "^6.0.2",
     "jsdom": "^27.3.0",
     "playwright": "^1.57.0",
-    "typescript": "^5.9.3",
+    "typescript": "^6.0.0",
     "vite": "^8.0.0",
     "vitest": "^4.0.15"
   },