diff --git a/rosa.cabal b/rosa.cabal
index d13cd13..a691713 100644
--- a/rosa.cabal
+++ b/rosa.cabal
@@ -1,5 +1,5 @@
 name:                rosa
-version:             0.3.1.0
+version:             0.4.0.0
 synopsis:            Query the namecoin blockchain
 description: