diff --git a/package.json b/package.json
index d7d2055d30..794811bfda 100644
--- a/package.json
+++ b/package.json
@@ -319,12 +319,12 @@
   },
   "devDependencies": {
     "assert": "^1.4.1",
-    "browserify": "^14.4.0",
+    "browserify": "^15.0.0",
     "buffer": "^4.9.1",
     "coffee-script": "^1.10.0",
     "coveralls": "^3.0.0",
     "cross-spawn": "^5.1.0",
-    "eslint": "^4.8.0",
+    "eslint": "^6.0.0",
     "eslint-config-semistandard": "^11.0.0",
     "eslint-config-standard": "^10.2.1",
     "eslint-plugin-import": "^2.7.0",