diff --git a/package.json b/package.json
index 9ece8186..75c90296 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   },
   "devDependencies": {
     "chai": "^3.5.0",
-    "debug": "~2.2.0",
+    "debug": "~4.3.2",
     "eslint-config-angular": "^0.5.0",
     "eslint-plugin-angular": "^1.3.1",
     "eslint-plugin-chai-expect": "^1.1.1",