diff --git a/package-lock.json b/package-lock.json
index cf270da..08baa0c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -196,12 +196,9 @@
             }
         },
         "commander": {
-            "version": "2.9.0",
-            "resolved": "https://registry.npmjs.org/commander/-/commander-2.9.0.tgz",
-            "integrity": "sha1-nJkJQXbhIkDLItbFFGCYQA/g99Q=",
-            "requires": {
-                "graceful-readlink": ">= 1.0.0"
-            }
+            "version": "2.20.3",
+            "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+            "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ=="
         },
         "concat-map": {
             "version": "0.0.1",
@@ -654,11 +651,6 @@
             "integrity": "sha1-FaSAaldUfLLS2/J/QuiajDRRs2Q=",
             "dev": true
         },
-        "graceful-readlink": {
-            "version": "1.0.1",
-            "resolved": "https://registry.npmjs.org/graceful-readlink/-/graceful-readlink-1.0.1.tgz",
-            "integrity": "sha1-TK+tdrxi8C+gObL5Tpo906ORpyU="
-        },
         "grunt": {
             "version": "0.4.5",
             "resolved": "https://registry.npmjs.org/grunt/-/grunt-0.4.5.tgz",
diff --git a/package.json b/package.json
index 8c9d10f..e73a8f0 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "main": "index.js",
     "dependencies": {
         "comb": "~2.0.0",
-        "commander": "~2.9.0",
+        "commander": "~2.20.3",
         "hive-cache": "0.0.3",
         "is-safe-integer": "1.0.1",
         "mysql": "2.10.0",