diff --git a/array.cabal b/array.cabal
index 00d7653f70689cb790827fb36971f3f0eec6a0a7..dcfb236104f96adfd2553f7aac6788b3c5cc4abe 100644
--- a/array.cabal
+++ b/array.cabal
@@ -1,5 +1,5 @@
 name:       array
-version:    0.3.0.3
+version:    0.4.0.0
 license:    BSD3
 license-file:    LICENSE
 maintainer:    libraries@haskell.org