diff --git a/package.json b/package.json
index d2bc5628..da541ff3 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "proxyquire": "^2.1.3",
     "pug": "^3.0.0",
     "simple-get": "^4.0.0",
-    "split2": "^3.2.2",
+    "split2": "^4.0.0",
     "standard": "^16.0.0",
     "tap": "^15.0.1",
     "tsd": "^0.18.0",