diff --git a/package.json b/package.json
index 30479ef..afa5768 100644
--- a/package.json
+++ b/package.json
@@ -9,13 +9,13 @@
   },
   "dependencies": {
     "browserify": "^16.3.0",
-    "gulp": "^4.0.2",
+    "gulp": "^5.0.0",
     "gulp-typescript": "^5.0.1",
     "gulp-util": "^3.0.8",
     "tsify": "^4.0.1",
     "typescript": "^3.5.3",
     "vinyl-source-stream": "^2.0.0",
-    "watchify": "^3.11.1"
+    "watchify": "^4.0.0"
   },
   "devDependencies": {},
   "scripts": {