diff --git a/ucd2haskell/ucd2haskell.cabal b/ucd2haskell/ucd2haskell.cabal
index 1a5f4bf..a7322b7 100644
--- a/ucd2haskell/ucd2haskell.cabal
+++ b/ucd2haskell/ucd2haskell.cabal
@@ -1,4 +1,4 @@
-cabal-version:      3.4
+cabal-version:      3.0
 name:               ucd2haskell
 version:            0.1.0.0
 -- synopsis: