diff --git a/package.json b/package.json
index c2445fa..d6e05c0 100644
--- a/package.json
+++ b/package.json
@@ -27,10 +27,10 @@
     "express": "^4.13.3",
     "express-error-handler": "^1.0.1",
     "globby": "^3.0.1",
-    "gulp": "^3.9.0",
-    "gulp-autoprefixer": "^3.0.2",
+    "gulp": "^4.0.0",
+    "gulp-autoprefixer": "^6.0.0",
     "gulp-cached": "^1.1.0",
-    "gulp-csso": "^1.0.0",
+    "gulp-csso": "^3.0.0",
     "gulp-if": "^2.0.0",
     "gulp-jade": "^1.1.0",
     "gulp-jscs": "^3.0.1",
@@ -39,7 +39,7 @@
     "gulp-load-plugins": "^1.0.0",
     "gulp-plumber": "^1.0.1",
     "gulp-rev-all": "^0.8.21",
-    "gulp-sass": "^2.0.4",
+    "gulp-sass": "^5.0.0",
     "gulp-sass-lint": "^1.0.1",
     "gulp-size": "^2.0.0",
     "gulp-sourcemaps": "^1.6.0",