diff --git a/data-util.cabal b/data-util.cabal
--- a/data-util.cabal
+++ b/data-util.cabal
@@ -1,5 +1,5 @@
 Name:                data-util
-Version:             0.2
+Version:             0.3
 Synopsis:            utilities for handle data
 Description:         utilities for handle data
 Homepage:            https://github.com/cutsea110/data-util
@@ -18,4 +18,4 @@
 Library
   Exposed-modules:     Data.Util, Data.Util.Size
   Build-depends:       
-                     base >= 4.2 && < 4.6
+                     base >= 4.2 && < 4.7