diff --git a/package.json b/package.json
index 80f14ef..d478618 100644
--- a/package.json
+++ b/package.json
@@ -30,19 +30,19 @@
     "codo": "^2.0.11",
     "coffee-script": "^1.10.0",
     "del": "^2.0.2",
-    "gulp": "^3.9.0",
-    "gulp-coffee": "^2.3.1",
+    "gulp": "^4.0.0",
+    "gulp-coffee": "^3.0.1",
     "gulp-concat": "^2.6.0",
-    "gulp-mocha": "^2.1.3",
+    "gulp-mocha": "^5.0.0",
     "gulp-order": "^1.1.1",
     "gulp-rename": "^1.2.2",
-    "gulp-sass": "^2.0.4",
-    "gulp-uglify": "^1.4.1",
+    "gulp-sass": "^5.0.0",
+    "gulp-uglify": "^2.0.0",
     "gulp-util": "^3.0.6",
-    "jsdom": "^7.0.2",
+    "jsdom": "^16.6.0",
     "mocha": "^2.3.3",
-    "node-minify": "^1.2.1",
-    "node-sass": "^3.3.3",
+    "node-minify": "^2.0.5",
+    "node-sass": "^7.0.2",
     "sinon": "^1.17.1",
     "xmlhttprequest": "^1.7.0"
   },