diff --git a/lib/rom/sql/version.rb b/lib/rom/sql/version.rb
index 9d9eb71a..36dd4eff 100644
--- a/lib/rom/sql/version.rb
+++ b/lib/rom/sql/version.rb
@@ -2,6 +2,6 @@
 
 module ROM
   module SQL
-    VERSION = "4.0.0"
+    VERSION = "4.0.0.alpha1"
   end
 end