diff --git a/package.json b/package.json
index fbc7c67..aaa7ec4 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "rimraf": "2.6.2"
   },
   "dependencies": {
-    "commander": "^2.9.0",
+    "commander": "^4.0.0",
     "cross-spawn": "^5.0.1",
     "debug": "^3.0.0",
     "mkdirp": "^0.5.1",