diff --git a/package.json b/package.json
index 0d6905f..cd618b1 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
   "dependencies": {
     "body-parser": "^1.18.3",
     "chalk": "^2.4.1",
-    "commander": "^2.19.0",
+    "commander": "^6.2.1",
     "express": "^4.16.4",
     "express-http-proxy": "^1.4.0",
     "get-port": "^4.0.0",
diff --git a/yarn.lock b/yarn.lock
index 663ef53..0277d81 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -783,11 +783,16 @@ commander@2.15.1:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.15.1.tgz#df46e867d0fc2aec66a34662b406a9ccafff5b0f"
   integrity sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag==
 
-commander@^2.12.1, commander@^2.19.0:
+commander@^2.12.1:
   version "2.19.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.19.0.tgz#f6198aa84e5b83c46054b94ddedbfed5ee9ff12a"
   integrity sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==
 
+commander@^6.2.1:
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-6.2.1.tgz#0792eb682dfbc325999bb2b84fddddba110ac73c"
+  integrity sha512-U7VdrJFnJgo4xjrHpTzu0yrHPGImdsmD95ZlgYSEajAn2JKzDhDTPG9kBTefmObL2w/ngeZnilk+OV9CG3d7UA==
+
 commander@~2.17.1:
   version "2.17.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"