diff --git a/unix.cabal b/unix.cabal
index 7f6052e43016aa0468985fef461dfcc31d7ac710..5a28c191eebda4787aa7cb45c429237e13387e3a 100644
--- a/unix.cabal
+++ b/unix.cabal
@@ -78,7 +78,7 @@ Library
         System.Posix.Terminal.Common
 
     build-depends:      base >= 4.2 && < 4.6,
-                        bytestring >= 0.9.2.0 && < 0.10
+                        bytestring >= 0.9.2.0 && < 0.11
     extensions: CPP, ForeignFunctionInterface, EmptyDataDecls
     if impl(ghc >= 7.1)
         extensions: NondecreasingIndentation