diff --git a/package-lock.json b/package-lock.json
index 713d6e6..3adabc5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -112,6 +112,15 @@
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+          "integrity": "sha512-yD5BHCe7quCgBph4rMQ+0KkIRKwWCrHDOX1p1Gp6HwjPM5kVoCdKGNhN7ydqqsX6lJEnQDKZ/tFMiEdQ1dvPEw==",
+          "dev": true
+        },
         "vinyl": {
-          "version": "0.4.6",
-          "resolved": "https://registry.npmjs.org/vinyl/-/vinyl-0.4.6.tgz",
-          "integrity": "sha1-LzVsh6VQolVGHza76ypbqL94SEc=",
+          "version": "2.2.1",
+          "resolved": "https://registry.npmjs.org/vinyl/-/vinyl-2.2.1.tgz",
+          "integrity": "sha512-LII3bXRFBZLlezoG5FfZVcXflZgWP/4dCwKtxd5ky9+LOtM4CS3bIRQsmR1KMnMW07jpE8fqR2lcxPZ+8sJIcw==",
           "dev": true,
           "requires": {
-            "clone": "^0.2.0",
-            "clone-stats": "^0.0.1"
+            "clone": "^2.1.1",
+            "clone-buffer": "^1.0.0",
+            "clone-stats": "^1.0.0",
+            "cloneable-readable": "^1.0.0",
+            "remove-trailing-separator": "^1.0.1",
+            "replace-ext": "^1.0.0"
           }
         }
       }
@@ -7890,6 +8840,12 @@
         "isexe": "^2.0.0"
       }
     },
+    "which-module": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-1.0.0.tgz",
+      "integrity": "sha512-F6+WgncZi/mJDrammbTuHe1q0R5hOXv/mBaiNA2TCNT/LTHusX0V+CJnj9XT8ki5ln2UZyyddDgHfCzyrOH7MQ==",
+      "dev": true
+    },
     "widest-line": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/widest-line/-/widest-line-2.0.1.tgz",
@@ -7958,6 +8914,16 @@
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
       "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
     },
+    "wrap-ansi": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+      "integrity": "sha512-vAaEaDM946gbNpH5pLVNR+vX2ht6n0Bt3GXwVB1AuAqZosOvHNF3P7wDnh8KLkSqgUh0uh77le7Owgoz+Z9XBw==",
+      "dev": true,
+      "requires": {
+        "string-width": "^1.0.1",
+        "strip-ansi": "^3.0.1"
+      }
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -8013,6 +8979,12 @@
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       "dev": true
     },
+    "y18n": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.2.tgz",
+      "integrity": "sha512-uGZHXkHnhF0XeeAPgnKfPv1bgKAYyVvmNL1xlKsPYZPaIHxGti2hHqvOCQv71XMsLxu1QjergkqogUnms5D3YQ==",
+      "dev": true
+    },
     "yallist": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
@@ -8029,6 +9001,24 @@
         "decamelize": "^1.0.0",
         "window-size": "0.1.0"
       }
+    },
+    "yargs-parser": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-5.0.1.tgz",
+      "integrity": "sha512-wpav5XYiddjXxirPoCTUPbqM0PXvJ9hiBMvuJgInvo4/lAOTZzUprArw17q2O1P2+GHhbBr18/iQwjL5Z9BqfA==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^3.0.0",
+        "object.assign": "^4.1.0"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
+          "integrity": "sha512-4nhGqUkc4BqbBBB4Q6zLuD7lzzrHYrjKGeYaEji/3tFR5VdJu9v+LilhGIVe8wxEJPPOeWo7eg8dwY13TZ1BNg==",
+          "dev": true
+        }
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index b46cbc7..a2eaeb3 100644
--- a/package.json
+++ b/package.json
@@ -20,12 +20,12 @@
   },
   "devDependencies": {
     "eslint": "^1.1.0",
-    "gulp": "^3.8.11",
+    "gulp": "^4.0.2",
     "gulp-eslint": "^1.0.0",
     "gulp-minify-css": "^0.5.1",
     "gulp-nodemon": "^1.0.4",
     "gulp-notify": "^2.2.0",
     "gulp-sass": "^1.3.3",
-    "gulp-watch": "^0.6.9"
+    "gulp-watch": "^5.0.1"
   }
 }