diff --git a/package.json b/package.json
index 743ef47..ec49f2f 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.5.5",
-    "debug": "^4.1.1",
+    "debug": ">=3.2.6 || >= 4.1.1",
     "weeknumber": "^1.1.1"
   }
 }