diff --git a/package-lock.json b/package-lock.json
index c9f8755..33d3adb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1966,6 +1966,81 @@
         "each-async": "^1.0.0",
         "node-sass": "^3.7.0",
         "object-assign": "^4.0.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+          "dev": true
+        },
+        "ansi-styles": {
+          "version": "2.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
+          "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
+          "dev": true
+        },
+        "chalk": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^2.2.1",
+            "escape-string-regexp": "^1.0.2",
+            "has-ansi": "^2.0.0",
+            "strip-ansi": "^3.0.0",
+            "supports-color": "^2.0.0"
+          }
+        },
+        "has-ansi": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
+          "integrity": "sha1-NPUEnOHs3ysGSa8+8k5F7TVBbZE=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^2.0.0"
+          }
+        },
+        "node-sass": {
+          "version": "3.13.1",
+          "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-3.13.1.tgz",
+          "integrity": "sha1-ckD7v/I5YwS0IjUn7TAgWJwAT8I=",
+          "dev": true,
+          "requires": {
+            "async-foreach": "^0.1.3",
+            "chalk": "^1.1.1",
+            "cross-spawn": "^3.0.0",
+            "gaze": "^1.0.0",
+            "get-stdin": "^4.0.1",
+            "glob": "^7.0.3",
+            "in-publish": "^2.0.0",
+            "lodash.assign": "^4.2.0",
+            "lodash.clonedeep": "^4.3.2",
+            "meow": "^3.7.0",
+            "mkdirp": "^0.5.1",
+            "nan": "^2.3.2",
+            "node-gyp": "^3.3.1",
+            "npmlog": "^4.0.0",
+            "request": "^2.61.0",
+            "sass-graph": "^2.1.1"
+          }
+        },
+        "strip-ansi": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^2.0.0"
+          }
+        },
+        "supports-color": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
+          "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
+          "dev": true
+        }
       }
     },
     "grunt-zip": {
@@ -2766,9 +2841,9 @@
       }
     },
     "node-sass": {
-      "version": "3.13.1",
-      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-3.13.1.tgz",
-      "integrity": "sha1-ckD7v/I5YwS0IjUn7TAgWJwAT8I=",
+      "version": "4.13.1",
+      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.13.1.tgz",
+      "integrity": "sha512-TTWFx+ZhyDx1Biiez2nB0L3YrCZ/8oHagaDalbuBSlqXgUPsdkUSzJsVxeDO9LtPB49+Fh3WQl3slABo6AotNw==",
       "dev": true,
       "requires": {
         "async-foreach": "^0.1.3",
@@ -2778,15 +2853,16 @@
         "get-stdin": "^4.0.1",
         "glob": "^7.0.3",
         "in-publish": "^2.0.0",
-        "lodash.assign": "^4.2.0",
-        "lodash.clonedeep": "^4.3.2",
+        "lodash": "^4.17.15",
         "meow": "^3.7.0",
         "mkdirp": "^0.5.1",
-        "nan": "^2.3.2",
-        "node-gyp": "^3.3.1",
+        "nan": "^2.13.2",
+        "node-gyp": "^3.8.0",
         "npmlog": "^4.0.0",
-        "request": "^2.61.0",
-        "sass-graph": "^2.1.1"
+        "request": "^2.88.0",
+        "sass-graph": "^2.2.4",
+        "stdout-stream": "^1.4.0",
+        "true-case-path": "^1.0.2"
       },
       "dependencies": {
         "ansi-regex": {
@@ -3935,6 +4011,15 @@
       "integrity": "sha1-+vUbnrdKrvOzrPStX2Gr8ky3uT4=",
       "dev": true
     },
+    "stdout-stream": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/stdout-stream/-/stdout-stream-1.4.1.tgz",
+      "integrity": "sha512-j4emi03KXqJWcIeF8eIXkjMFN1Cmb8gUlDYGeBALLPo5qdyTfA9bOtl8m33lRoC+vFMkP3gl0WsDr6+gzxbbTA==",
+      "dev": true,
+      "requires": {
+        "readable-stream": "^2.0.1"
+      }
+    },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -4090,6 +4175,31 @@
       "integrity": "sha1-WIeWa7WCpFA6QetST301ARgVphM=",
       "dev": true
     },
+    "true-case-path": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/true-case-path/-/true-case-path-1.0.3.tgz",
+      "integrity": "sha512-m6s2OdQe5wgpFMC+pAJ+q9djG82O2jcHPOI6RNg1yy9rCYR+WD6Nbpl32fDpfC56nirdRy+opFa/Vk7HYhqaew==",
+      "dev": true,
+      "requires": {
+        "glob": "^7.1.2"
+      },
+      "dependencies": {
+        "glob": {
+          "version": "7.1.6",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+          "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        }
+      }
+    },
     "tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index eaec2b2..6636ae6
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "grunt-retire": "~0.3.10",
     "grunt-zip": "~0.17.1",
     "mustache": "~2.2.1",
-    "node-sass": "~3.13.0",
+    "node-sass": "~4.13.1",
     "socket.io": "^1.4.8"
   },
   "license": "MIT"