diff --git a/package.json b/package.json
index b9f0609..6cadc64 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   "homepage": "https://github.com/pinojs/pino-abstract-transport#readme",
   "dependencies": {
     "duplexify": "^4.1.2",
-    "split2": "^3.2.2"
+    "split2": "^4.0.0"
   },
   "devDependencies": {
     "husky": "^7.0.0",