diff --git a/package.json b/package.json
index a9623f4..49c4f01 100644
--- a/package.json
+++ b/package.json
@@ -46,6 +46,6 @@
     "publish": true
   },
   "dependencies": {
-    "which": "^5.0.0"
+    "which": "^6.0.0"
   }
 }