diff --git a/package.json b/package.json
index 23ff19c33..94f2eecc7 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "prettier": "^3.6.2",
     "prettier-plugin-svelte": "^3.4.0",
     "rimraf": "^6.0.1",
-    "typescript": "~5.8.3",
+    "typescript": "~5.9.0",
     "typescript-eslint": "^8.39.0",
     "undici": "^6.21.2"
   },