diff --git a/package.json b/package.json
index 3ed67edc9..3fd6db57d 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
   "dependencies": {
     "async": "2.6.1",
     "cliff": "0.1.10",
-    "commander": "2.19.0",
+    "commander": "2.20.3",
     "crc": "3.8.0",
     "ioredis": "4.2.0",
     "mkdirp": "0.5.1",