--- a/cereal.cabal
+++ b/cereal.cabal
@@ -32,9 +32,6 @@ library
                                 base >= 4.4 && < 5, containers, array,
                                 ghc-prim >= 0.2
 
-        if !impl(ghc >= 8.0)
-          build-depends:        fail == 4.9.*
-
         hs-source-dirs:         src
 
         exposed-modules:        Data.Serialize,
