diff --git a/package-lock.json b/package-lock.json
index 2abe064803..1a75ab2ab9 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -6053,18 +5315,10 @@
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     },
-    "tough-cookie": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.3.tgz",
-      "integrity": "sha1-C2GKVWW23qkL80JdBNVe3EdadWE=",
-      "requires": {
-        "punycode": "^1.4.1"
-      }
-    },
-    "trim-newlines": {
+    "transfob": {
       "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/trim-newlines/-/trim-newlines-1.0.0.tgz",
-      "integrity": "sha1-WIeWa7WCpFA6QetST301ARgVphM="
+      "resolved": "https://registry.npmjs.org/transfob/-/transfob-1.0.0.tgz",
+      "integrity": "sha512-8pltyWUhEM8NJdYRt5mUlnLEImxozXnmAkD4xL9MKTFyNiKuraibTiXnGbjuxtQdP9CzihRy4PR+Al7Iy2cmCw=="
     },
     "trim-right": {
       "version": "1.0.1",
@@ -6072,20 +5326,6 @@
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       "dev": true
     },
-    "tunnel-agent": {
-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
-      "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
-      "requires": {
-        "safe-buffer": "^5.0.1"
-      }
-    },
-    "tweetnacl": {
-      "version": "0.14.5",
-      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
-      "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-      "optional": true
-    },
     "type-is": {
       "version": "1.6.16",
       "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
@@ -6307,11 +5547,6 @@
       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
       "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
     },
-    "uuid": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.1.0.tgz",
-      "integrity": "sha512-DIWtzUkw04M4k3bf1IcpS2tngXEL26YUD2M0tMDUpnUrz2hgzUBlD55a4FjdLGPvfHxS6uluGWvaVEqgBcVa+g=="
-    },
     "v8flags": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/v8flags/-/v8flags-3.1.1.tgz",
@@ -6334,16 +5569,6 @@
       "resolved": "https://registry.npmjs.org/value-or-function/-/value-or-function-3.0.0.tgz",
       "integrity": "sha1-HCQ6ULWVwb5Up1S/7OhWO5/42BM="
     },
-    "verror": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
-      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
-      "requires": {
-        "assert-plus": "^1.0.0",
-        "core-util-is": "1.0.2",
-        "extsprintf": "^1.2.0"
-      }
-    },
     "vinyl": {
       "version": "0.5.3",
       "resolved": "https://registry.npmjs.org/vinyl/-/vinyl-0.5.3.tgz",
@@ -6527,14 +5752,6 @@
       "resolved": "https://registry.npmjs.org/which-module/-/which-module-1.0.0.tgz",
       "integrity": "sha1-u6Y8qGGUiZT/MHc2CJ47lgJsKk8="
     },
-    "wide-align": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.2.tgz",
-      "integrity": "sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w==",
-      "requires": {
-        "string-width": "^1.0.2"
-      }
-    },
     "window-size": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
@@ -6569,11 +5786,6 @@
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
       "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE="
     },
-    "yallist": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
-      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
-    },
     "yargs": {
       "version": "7.1.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-7.1.0.tgz",
diff --git a/package.json b/package.json
index 846b3228e6..e24ecd5deb 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "gulp-if": "^2.0.0",
     "gulp-minify-css": "^1.2.1",
     "gulp-replace": "^0.5.4",
-    "gulp-sass": "^2.0.4",
+    "gulp-sass": "^5.0.0",
     "gulp-uglify": "^1.4.2",
     "js-yaml": "^3.4.3"
   },