--- a/clash-ghc.cabal
+++ b/clash-ghc.cabal
@@ -192,7 +192,7 @@ library
     Build-Depends:    exceptions                >= 0.10.4   && < 0.11,
 
   if impl(ghc >= 9.0.0)
-    Build-Depends:    ghc-bignum                >= 1.0      && < 1.3
+    Build-Depends:    ghc-bignum                >= 1.0      && < 1.4
   else
     Build-Depends:    integer-gmp               >= 1.0.1.0  && < 2.0
 
