--- a/base16-bytestring.cabal
+++ b/base16-bytestring.cabal
@@ -51,7 +51,7 @@ library
 
   build-depends:
       base        >=4.9 && <5
-    , bytestring  >=0.9 && <0.12
+    , bytestring  >=0.9 && <0.13
 
   ghc-options:      -Wall -funbox-strict-fields
   default-language: Haskell2010
