diff --git a/package.json b/package.json
index 2fbd7bd4dc..bf9e9ec19a 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
         "url": "https://github.com/bugsnag/bugsnag-js"
     },
     "devDependencies": {
-        "eslint": "^3.4.0",
+        "eslint": "^7.3.0",
         "grunt": "~0.4.2",
         "grunt-bumpx": "~0.1.0",
         "grunt-contrib-watch": "~0.5.2",
@@ -34,7 +34,7 @@
         "grunt-invalidate-cloudfront": "~0.1.4",
         "grunt-regex-replace": "~0.2.5",
         "grunt-s3": "git://github.com/pifantastic/grunt-s3",
-        "gruntify-eslint": "^1.3.0",
+        "gruntify-eslint": "^4.0.0",
         "karma": "~1.3.0",
         "karma-mocha-ie-legacy": "file:./test/karma-mocha",
         "karma-phantomjs-launcher": "^1.0.1",