diff --git a/apportionment.cabal b/apportionment.cabal
--- a/apportionment.cabal
+++ b/apportionment.cabal
@@ -1,5 +1,5 @@
 Name:                apportionment
-Version:             0.0.0.2
+Version:             0.0.0.3
 Synopsis:            Round a set of numbers while maintaining its sum
 Description:
   Round a set of numbers while maintaining its sum.
@@ -16,7 +16,7 @@
 Cabal-Version:       >=1.10
 
 Source-Repository this
-  Tag:         0.0.0.2
+  Tag:         0.0.0.3
   Type:        darcs
   Location:    http://hub.darcs.net/thielema/apportionment
 
@@ -28,7 +28,7 @@
   Exposed-Modules:     Math.Apportionment
   Build-Depends:
     utility-ht >=0.0.11 && <0.1,
-    containers >=0.4.2 && <0.6,
+    containers >=0.4.2 && <0.7,
     base >=4.5 && <5
   Hs-Source-Dirs:      src
   Default-Language:    Haskell2010