diff --git a/package.json b/package.json
index a5830ca..d07643d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pg",
-  "version": "3.6.0",
+  "version": "4.0.0-beta1",
   "description": "PostgreSQL client - pure javascript & libpq with the same API",
   "keywords": [
     "postgres",