diff --git a/network-transport-composed.cabal b/network-transport-composed.cabal
index f420d1b..bf91402 100644
--- a/network-transport-composed.cabal
+++ b/network-transport-composed.cabal
@@ -20,7 +20,7 @@ Source-Repository head
 library
   exposed-modules:     Network.Transport.Composed
   -- other-modules:       
-  build-depends:       base ==4.5.*,
+  build-depends:       base >=4.5,
                        network-transport >= 0.3 && < 0.4
   hs-source-dirs:      src
   ghc-options:         -Wall