diff --git a/package-lock.json b/package-lock.json
index 8d4a495..f75c6a6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -179,8 +179,8 @@
             "integrity": "sha1-vxlF6C/ICPVWlebd6uwBQA79A/8=",
             "dev": true,
             "requires": {
-                "commander": "2.8.1",
-                "source-map": "0.4.4"
+                "commander": "2.8.x",
+                "source-map": "0.4.x"
             }
         },
         "cliui": {