diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index b2ccee5..89cb300
--- a/package.json
+++ b/package.json
@@ -6,18 +6,18 @@
   "license": "MIT",
   "homepage": "https://github.com/toddmotto/echo",
   "devDependencies": {
-    "gulp": "~3.7.0",
-    "gulp-uglify": "~0.3.0",
+    "gulp": "~4.0.0",
+    "gulp-uglify": "~2.0.0",
     "gulp-rename": "~1.1.0",
-    "gulp-clean": "^0.2.4",
-    "gulp-plumber": "~0.6.2",
+    "gulp-clean": "^0.4.0",
+    "gulp-plumber": "~1.2.0",
     "gulp-header": "^1.0.2",
-    "gulp-jshint": "^1.6.1",
+    "gulp-jshint": "^2.1.0",
     "jshint-stylish": "^0.2.0",
     "gulp-karma": "0.0.4",
-    "karma": "^0.12.16",
+    "karma": "^5.0.0",
     "karma-jasmine": "~0.2.0",
-    "karma-phantomjs-launcher": "^0.1.4",
+    "karma-phantomjs-launcher": "^0.2.0",
     "karma-spec-reporter": "0.0.13"
   },
   "main": "src/echo.js"