diff --git a/package-lock.json b/package-lock.json
index 91460cd..85a5aa4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "qsm",
-  "version": "2.1.0",
+  "version": "2.1.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -1142,12 +1142,6 @@
       "integrity": "sha1-yc45Okt8vQsFinJck98pkCeGj/k=",
       "dev": true
     },
-    "duplexer": {
-      "version": "0.1.1",
-      "resolved": "https://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz",
-      "integrity": "sha1-rOb/gIwc5mtX0ev5eXessCM0z8E=",
-      "dev": true
-    },
     "duplexer2": {
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/duplexer2/-/duplexer2-0.0.2.tgz",
@@ -1435,12 +1429,6 @@
         "map-cache": "^0.2.2"
       }
     },
-    "from": {
-      "version": "0.1.7",
-      "resolved": "https://registry.npmjs.org/from/-/from-0.1.7.tgz",
-      "integrity": "sha1-g8YK/Fi5xWmXAH7Rp2izqzA6RP4=",
-      "dev": true
-    },
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
@@ -1669,51 +1657,6 @@
         "vinyl-fs": "^0.3.0"
       }
     },
-    "gulp-add-src": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/gulp-add-src/-/gulp-add-src-0.2.0.tgz",
-      "integrity": "sha1-nhApRhn5Gg5/QhfE9eUYQbzb7xc=",
-      "dev": true,
-      "requires": {
-        "event-stream": "~3.1.5",
-        "streamqueue": "^0.1.1",
-        "through2": "~0.4.1",
-        "vinyl-fs": "~0.3.11"
-      },
-      "dependencies": {
-        "readable-stream": {
-          "version": "1.0.34",
-          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz",
-          "integrity": "sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=",
-          "dev": true,
-          "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.1",
-            "isarray": "0.0.1",
-            "string_decoder": "~0.10.x"
-          }
-        },
-        "through2": {
-          "version": "0.4.2",
-          "resolved": "https://registry.npmjs.org/through2/-/through2-0.4.2.tgz",
-          "integrity": "sha1-2/WGYDEVHsg1K7bE22SiKSqEC5s=",
-          "dev": true,
-          "requires": {
-            "readable-stream": "~1.0.17",
-            "xtend": "~2.1.1"
-          }
-        },
-        "xtend": {
-          "version": "2.1.2",
-          "resolved": "https://registry.npmjs.org/xtend/-/xtend-2.1.2.tgz",
-          "integrity": "sha1-bv7MKk2tjmlixJAbM3znuoe10os=",
-          "dev": true,
-          "requires": {
-            "object-keys": "~0.4.0"
-          }
-        }
-      }
-    },
     "gulp-babel": {
       "version": "6.1.3",
       "resolved": "https://registry.npmjs.org/gulp-babel/-/gulp-babel-6.1.3.tgz",
@@ -2373,12 +2316,6 @@
       "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
       "dev": true
     },
-    "isstream": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz",
-      "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo=",
-      "dev": true
-    },
     "js-tokens": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz",
@@ -2462,9 +2399,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.15",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
       "dev": true
     },
     "lodash._baseassign": {
@@ -3244,15 +3181,6 @@
         }
       }
     },
-    "pause-stream": {
-      "version": "0.0.11",
-      "resolved": "https://registry.npmjs.org/pause-stream/-/pause-stream-0.0.11.tgz",
-      "integrity": "sha1-/lo0sMvOErWqaitAPuLnO2AvFEU=",
-      "dev": true,
-      "requires": {
-        "through": "~2.3"
-      }
-    },
     "pify": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
@@ -3837,27 +3765,6 @@
         }
       }
     },
-    "stream-combiner": {
-      "version": "0.0.4",
-      "resolved": "https://registry.npmjs.org/stream-combiner/-/stream-combiner-0.0.4.tgz",
-      "integrity": "sha1-TV5DPBhSYd3mI8o/RMWGvPXErRQ=",
-      "dev": true,
-      "requires": {
-        "define-property": "^0.2.5",
-        "object-copy": "^0.1.0"
-      },
-      "dependencies": {
-        "define-property": {
-          "version": "0.2.5",
-          "resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
-          "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
-          "dev": true,
-          "requires": {
-            "is-descriptor": "^0.1.0"
-          }
-        }
-      }
-    },
     "stream-consume": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/stream-consume/-/stream-consume-0.1.1.tgz",
@@ -3913,12 +3820,6 @@
       "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
       "dev": true
     },
-    "through": {
-      "version": "2.3.8",
-      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
-      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=",
-      "dev": true
-    },
     "through2": {
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/through2/-/through2-2.0.5.tgz",