diff --git a/demo/package.json b/demo/package.json
index 9c903a680..4f84cdd60 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -41,6 +41,6 @@
     "karma-coverage": "~2.2.0",
     "karma-jasmine": "~5.1.0",
     "karma-jasmine-html-reporter": "~2.1.0",
-    "typescript": "~5.5.3"
+    "typescript": "~5.9.2"
   }
 }
\ No newline at end of file