diff --git a/assets/static/theme/vendor/custombox/package.json b/assets/static/theme/vendor/custombox/package.json
index 96807d6f2..01535675c 100644
--- a/assets/static/theme/vendor/custombox/package.json
+++ b/assets/static/theme/vendor/custombox/package.json
@@ -59,7 +59,7 @@
     "grunt-contrib-uglify": "^3.0.0",
     "grunt-fixpack": "^0.1.0",
     "jasmine-core": "^2.5.2",
-    "karma": "^1.3.0",
+    "karma": "^5.0.0",
     "karma-chrome-launcher": "^2.0.0",
     "karma-cli": "^1.0.1",
     "karma-coveralls": "^1.1.2",