diff --git a/package.json b/package.json
index 4f48195..7e03d22 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "p-pipe",
-	"version": "3.1.0",
+	"version": "4.0.0",
 	"description": "Compose promise-returning & async functions into a reusable pipeline",
 	"license": "MIT",
 	"repository": "sindresorhus/p-pipe",