Update gulpfile.js

package.json

@@ -3,16 +3,16 @@
   "version": "0.0.0",
   "dependencies": {},
   "devDependencies": {
-    "gulp": "^3.9.0",
-    "gulp-changed": "^1.2.1",
-    "gulp-autoprefixer": "^2.3.1",
-    "gulp-filter": "^2.0.2",
-    "gulp-less": "^3.0.3",
-    "gulp-jsbeautifier": "^1.0.1",
-    "gulp-minify-css": "^1.2.0",
+    "gulp": "^3.9.1",
+    "gulp-changed": "^1.3.0",
+    "gulp-autoprefixer": "^3.1.0",
+    "gulp-filter": "^4.0.0",
+    "gulp-less": "^3.1.0",
+    "gulp-jsbeautifier": "^2.0.3",
+    "gulp-minify-css": "^1.2.4",
     "lazypipe": "^1.0.1",
-    "gulp-uglify": "^1.2.0",
-    "minimist": "^1.1.1",
+    "gulp-uglify": "^1.5.3",
+    "minimist": "^1.2.0",
     "through": "^2.3.8"
   }
 }