diff --git a/package.json b/package.json
index 06f360a..988884b 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "index.js"
   ],
   "dependencies": {
-    "to-vfile": "^2.0.0"
+    "to-vfile": "^4.0.0"
   },
   "devDependencies": {
     "nyc": "^11.0.0",