diff --git a/charset.cabal b/charset.cabal
--- a/charset.cabal
+++ b/charset.cabal
@@ -1,5 +1,5 @@
 name:         charset
-version:      0.2.2
+version:      0.2.3
 license:      BSD3
 license-File: LICENSE
 copyright:    (c) Edward Kmett 2010
@@ -12,10 +12,10 @@
 description:  Fast unicode character sets based on complemented PATRICIA tries
 
 build-type:   Simple
-build-depends:       
+build-depends:
     base >= 4 && < 5,
-    containers >= 0.2 && < 0.4,
-    array >= 0.2 && < 0.4
+    containers >= 0.2 && < 0.5,
+    array >= 0.2 && < 0.5
 
 exposed-modules:
     Data.CharSet