diff --git a/package-lock.json b/package-lock.json
index 5ca82f9..47fd12a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -352,12 +352,6 @@
         "object-assign": "4.1.1"
       }
     },
-    "file-sync-cmp": {
-      "version": "0.1.1",
-      "resolved": "https://registry.npmjs.org/file-sync-cmp/-/file-sync-cmp-0.1.1.tgz",
-      "integrity": "sha1-peeo/7+kk7Q7kju9TKiaU7Y7YSs=",
-      "dev": true
-    },
     "filename-regex": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/filename-regex/-/filename-regex-2.0.1.tgz",
@@ -521,37 +515,6 @@
         }
       }
     },
-    "grunt-contrib-clean": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/grunt-contrib-clean/-/grunt-contrib-clean-1.1.0.tgz",
-      "integrity": "sha1-Vkq/LQN4qYOhW54/MO51tzjEBjg=",
-      "dev": true,
-      "requires": {
-        "async": "1.5.2",
-        "rimraf": "2.6.1"
-      },
-      "dependencies": {
-        "rimraf": {
-          "version": "2.6.1",
-          "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.1.tgz",
-          "integrity": "sha1-wjOOxkPfeht/5cVPqG9XQopV8z0=",
-          "dev": true,
-          "requires": {
-            "glob": "7.0.6"
-          }
-        }
-      }
-    },
-    "grunt-contrib-copy": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/grunt-contrib-copy/-/grunt-contrib-copy-1.0.0.tgz",
-      "integrity": "sha1-cGDGWB6QS4qw0A8HbgqPbj58NXM=",
-      "dev": true,
-      "requires": {
-        "chalk": "1.1.3",
-        "file-sync-cmp": "0.1.1"
-      }
-    },
     "grunt-known-options": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/grunt-known-options/-/grunt-known-options-1.1.0.tgz",
@@ -931,7 +894,7 @@
     "minimist": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
-      "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+      "integrity": "sha512-7Wl+Jz+IGWuSdgsQEJ4JunV0si/iMhg42MnQQG6h1R6TNeVenp4U9x5CC5v/gYqz/fENLQITAWXidNtVL0NNbw==",
       "dev": true
     },
     "ncp": {