diff --git a/packages/parallel-mcp/testkit/package.json b/packages/parallel-mcp/testkit/package.json
index 6a0aa95..1d99f1e 100644
--- a/packages/parallel-mcp/testkit/package.json
+++ b/packages/parallel-mcp/testkit/package.json
@@ -56,7 +56,7 @@
     "@razroo/parallel-mcp": ">=0.3.0 <1.0.0"
   },
   "devDependencies": {
-    "@types/node": "^25.6.0",
+    "@types/node": "^26.0.0",
     "typescript": "^6.0.3",
     "vitest": "^4.1.4"
   }