diff --git a/package.json b/package.json
index 5f85e7754..6fd657fba 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "co-defer": "~1.0.0",
     "co-gather": "~0.0.1",
     "co-sleep": "~0.0.1",
-    "commander": "~2.9.0",
+    "commander": "~2.20.3",
     "copy-to": "~2.0.1",
     "debug": "~2.2.0",
     "error-formater": "~1.0.3",