diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 494ff53..3caf8a1 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -11,6 +11,8 @@ jobs:
           - 8.10.7
           - 9.0.2
           - 9.2.4
+          - 9.4.3
+          - 9.8.1
     steps:
       - uses: actions/checkout@v3
       - uses: haskell/actions/setup@v2
diff --git a/generic-arbitrary.cabal b/generic-arbitrary.cabal
index b93b2c6..e15c09e 100644
--- a/generic-arbitrary.cabal
+++ b/generic-arbitrary.cabal
@@ -66,6 +66,7 @@ test-suite test
                   , tasty-hunit
                   , tasty-quickcheck
   other-modules: Auxiliary
+               , EnumTest
                , LimitationDemo
                , NoTypecheckTest
                , ParametersTest
diff --git a/ghc-9.4.3.yaml b/ghc-9.4.3.yaml
new file mode 100644
index 0000000..6a8eb10
--- /dev/null
+++ b/ghc-9.4.3.yaml
@@ -0,0 +1 @@
+resolver: nightly-2022-12-26
diff --git a/ghc-9.4.3.yaml.lock b/ghc-9.4.3.yaml.lock
new file mode 100644
index 0000000..d31b93a
--- /dev/null
+++ b/ghc-9.4.3.yaml.lock
@@ -0,0 +1,12 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    sha256: bbe432b2abd6d866aa37f65a8129a5f858b7c6eaae9464f8bc2814ce92ac2d15
+    size: 573163
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/nightly/2022/12/26.yaml
+  original: nightly-2022-12-26
diff --git a/ghc-9.8.1.yaml b/ghc-9.8.1.yaml
new file mode 100644
index 0000000..d43c6ee
--- /dev/null
+++ b/ghc-9.8.1.yaml
@@ -0,0 +1 @@
+resolver: nightly-2024-01-12
diff --git a/ghc-9.8.1.yaml.lock b/ghc-9.8.1.yaml.lock
new file mode 100644
index 0000000..253c35a
--- /dev/null
+++ b/ghc-9.8.1.yaml.lock
@@ -0,0 +1,12 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    sha256: 8f06e87750f95bc8620644ea22344ad023c3c5aa6efa854747aa70093898fd79
+    size: 556465
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/nightly/2024/1/12.yaml
+  original: nightly-2024-01-12
diff --git a/test/EnumTest.hs b/test/EnumTest.hs
new file mode 100644
index 0000000..0957cdb
--- /dev/null
+++ b/test/EnumTest.hs
@@ -0,0 +1,24 @@
+#if __GLASGOW_HASKELL__ >= 806 && __GLASGOW_HASKELL__ <= 900
+{-# OPTIONS_GHC -fconstraint-solver-iterations=5 #-}
+#elif __GLASGOW_HASKELL__ >= 902 && __GLASGOW_HASKELL__ <= 908
+{-# OPTIONS_GHC -fconstraint-solver-iterations=6 #-}
+#endif
+
+
+
+module EnumTest where
+
+import Control.DeepSeq
+import GHC.Generics
+import Test.QuickCheck
+import Test.QuickCheck.Arbitrary.Generic
+
+data Country = PL | GB | RU | RO | CZ | HR | SK | DE | NL | ES | BR
+  deriving (Generic, NFData, Show)
+
+instance Arbitrary Country where
+  arbitrary = genericArbitrary
+  shrink = genericShrink
+
+prop_CountryTest :: Country -> Property
+prop_CountryTest = total