diff --git a/package-lock.json b/package-lock.json
index 0cc8242f..e254df5b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1577,12 +1577,9 @@
       "dev": true
     },
     "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": "6.2.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-6.2.0.tgz",
+      "integrity": "sha512-zP4jEKbe8SHzKJYQmq8Y9gYjtO/POJLgIdKgV7B9qNmABVFVc+ctqSX6iXh4mCpJfRBOabiZ2YKPg8ciDw6C+Q=="
     },
     "common-path-prefix": {
       "version": "3.0.0",
@@ -3426,11 +3423,6 @@
       "integrity": "sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==",
       "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="
-    },
     "hard-rejection": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/hard-rejection/-/hard-rejection-2.1.0.tgz",
diff --git a/package.json b/package.json
index 72b40584..55509bce 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
   },
   "homepage": "https://github.com/igorshubovych/markdownlint-cli#readme",
   "dependencies": {
-    "commander": "~2.9.0",
+    "commander": "~6.2.0",
     "deep-extend": "~0.5.1",
     "get-stdin": "~8.0.0",
     "glob": "~7.1.2",