diff --git a/package.json b/package.json
index df6dfb2..4b2657b 100644
--- a/package.json
+++ b/package.json
@@ -29,19 +29,19 @@
   },
   "dependencies": {
     "assemble": "git://github.com/assemble/assemble#v0.6.0",
-    "gulp": "3.8.10",
+    "gulp": "4.0.0",
     "gulp-autoprefixer": "2.1.0",
     "gulp-concat": "2.4.3",
     "gulp-connect": "2.2.0",
     "gulp-extname": "0.2.0",
-    "gulp-load-plugins": "0.8.0",
+    "gulp-load-plugins": "1.2.3",
     "gulp-minify-css": "0.4.4",
     "gulp-minify-html": "0.1.8",
     "gulp-rev": "3.0.0",
-    "gulp-sass": "1.3.2",
+    "gulp-sass": "2.0.0",
     "gulp-template": "2.1.0",
     "gulp-uglify": "1.1.0",
-    "gulp-usemin": "0.3.11",
+    "gulp-usemin": "0.3.27",
     "gulp-util": "3.0.3",
     "lodash": "3.0.0",
     "marked": "0.3.3"