diff --git a/casa-client.cabal b/casa-client.cabal
--- a/casa-client.cabal
+++ b/casa-client.cabal
@@ -2,7 +2,7 @@
 name:           casa-client
 synopsis:       Client for Casa
 description:    Client for Casa <https://casa.fpcomplete.com/>
-version:        0.0.0
+version:        0.0.1
 copyright:      2018-2019 FP Complete
 author:         Chris Done
 maintainer:     chrisdone@fpcomplete.com
@@ -19,7 +19,7 @@
   default-language: Haskell2010
   ghc-options: -Wall
   build-depends:
-      base >= 4.5 && < 4.7
+       base >= 4.5 && < 5
     , bytestring
     , base16-bytestring
     , conduit-extra