diff --git a/casa-types.cabal b/casa-types.cabal
--- a/casa-types.cabal
+++ b/casa-types.cabal
@@ -8,7 +8,7 @@
 license:        BSD3
 license-file:   LICENSE
 category: Development
-version:        0.0.0
+version:        0.0.1
 build-type:     Simple
 
 library
@@ -19,7 +19,7 @@
   default-language: Haskell2010
   ghc-options: -Wall
   build-depends:
-       base >= 4.5 && < 4.7
+       base >= 4.5 && < 5
     , bytestring
     , attoparsec
     , base16-bytestring