diff --git a/package.json b/package.json
index 031a7d0..48535f4 100644
--- a/package.json
+++ b/package.json
@@ -31,10 +31,10 @@
     "ansi": "^0.3.1",
     "benchmark": "^2.1.4",
     "bluebird": "^3.5.0",
-    "browserify": "^14.4.0",
+    "browserify": "^16.2.3",
     "eslint": "^5.9.0",
     "istanbul": "^0.4.5",
-    "mocha": "^3.2.0",
+    "mocha": "^5.2.0",
     "multiparty": "^4.1.3",
     "ndoc": "^5.0.1",
     "uglify-js": "^3.0.25",