diff --git a/package.json b/package.json
index 7d626fc..ee02325 100644
--- a/package.json
+++ b/package.json
@@ -115,7 +115,7 @@
     "string-replace-loader": "^3.0.3",
     "svelte": "^5.19.3",
     "tsup": "^8.0.0",
-    "typescript": "~5.8.0",
+    "typescript": "~5.9.0",
     "typescript-eslint": "^8.21.0",
     "typescript-eslint-parser-for-extra-files": "^0.9.0"
   },