diff --git a/ghc-filepath-bytestring.spec b/ghc-filepath-bytestring.spec
index 9359df0..e199d94 100644
--- a/ghc-filepath-bytestring.spec
+++ b/ghc-filepath-bytestring.spec
@@ -92,6 +92,7 @@ This package provides the Haskell %{pkg_name} profiling library.
 
 %prep
 %autosetup -n %{pkg_name}-%{version}
+cabal-tweak-dep-ver base "< 4.19" "< 5"
 
 %build
 %ghc_lib_build