diff --git a/clash-lib-hedgehog.cabal b/clash-lib-hedgehog.cabal
--- a/clash-lib-hedgehog.cabal
+++ b/clash-lib-hedgehog.cabal
@@ -1,7 +1,7 @@
 cabal-version:      2.2
 
 name:               clash-lib-hedgehog
-version:            1.8.2
+version:            1.8.3
 synopsis:           Hedgehog Generators for clash-lib
 description:        Hedgehog Generators for clash-lib
 bug-reports:        https://github.com/clash-lang/clash-compiler/issues
@@ -9,7 +9,7 @@
 license-file:       LICENSE
 author:             QBayLogic B.V.
 maintainer:         devops@qbaylogic.com
-copyright:          Copyright © 2021, QBayLogic B.V.
+copyright:          Copyright © 2021-2025, QBayLogic B.V.
 category:           Hardware
 build-type:         Simple
 
@@ -30,7 +30,7 @@
 
   build-depends:
     base      >= 4.11  && < 5,
-    hedgehog  >= 1.0.3 && < 1.5,
+    hedgehog  >= 1.0.3 && < 1.6,
 
 library
   import: basic-config
@@ -63,4 +63,4 @@
     transformers              >= 0.5.2.0 && < 0.7,
     ghc                       >= 8.6.0   && < 9.11,
 
-    clash-lib                 == 1.8.2,
+    clash-lib                 == 1.8.3,
diff --git a/src/Clash/Hedgehog/Unique.hs b/src/Clash/Hedgehog/Unique.hs
--- a/src/Clash/Hedgehog/Unique.hs
+++ b/src/Clash/Hedgehog/Unique.hs
@@ -18,6 +18,10 @@
   , sampleUniqMapBiased
   ) where
 
+#if MIN_VERSION_ghc(9,8,4) || (MIN_VERSION_ghc(9,6,7) && !MIN_VERSION_ghc(9,8,0))
+#define UNIQUE_IS_WORD64
+#endif
+
 import Control.Applicative (Alternative(empty))
 import Data.Either (rights)
 import Hedgehog (MonadGen, Range)
@@ -35,7 +39,7 @@
 
 genUnique :: forall m. MonadGen m => m Unique
 genUnique =
-#if MIN_VERSION_ghc(9,8,4)
+#ifdef UNIQUE_IS_WORD64
   Gen.word64
 #else
   Gen.int