diff --git a/pureMD5.cabal b/pureMD5.cabal
index b62d699..1342e45 100644
--- a/pureMD5.cabal
+++ b/pureMD5.cabal
@@ -21,7 +21,7 @@ flag test
 Library
   Build-Depends:
     , base >=4.18 && <4.21
-    , bytestring >=0.11 && <0.12
+    , bytestring >=0.11 && <0.13
     , binary >=0.8.9 && <0.9
     , cereal >=0.5.8.3 && <0.6
     , crypto-api >=0.13.3 && <0.14