diff --git a/package.json b/package.json
index 70d497577..400a20770 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "@types/ms": "0.7.34",
     "@types/node": "22.9.0",
     "@types/sinonjs__fake-timers": "8.1.5",
-    "@types/split2": "3.2.1",
+    "@types/split2": "4.2.3",
     "@types/stoppable": "1.1.3",
     "@types/tap": "15.0.12",
     "chai": "4.5.0",