diff --git a/ghc-cryptohash-sha1.spec b/ghc-cryptohash-sha1.spec
index e2b0bce..f5783b2 100644
--- a/ghc-cryptohash-sha1.spec
+++ b/ghc-cryptohash-sha1.spec
@@ -61,6 +61,7 @@ files.
 
 %prep
 %setup -q -n %{pkgver}
+cabal-tweak-dep-ver base '< 4.10' '< 4.11'
 
 
 %build