Tested with ghc-9.12.2

Author: newhoggy

.github/workflows/haskell.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ghc: ["9.8.1", "9.6.3", "9.4.8", "9.2.8", "9.0.2", "8.10.7"]
+        ghc: ["9.12.2", "9.10.2", "9.8.4", "9.6.7"]
         os: [ubuntu-latest, macOS-latest, windows-latest]
 
     env:

cabal.project

@@ -1 +1,5 @@
 packages: .
+
+allow-newer:
+  hedgehog:template-haskell,
+  doctest:ghc,

hw-xml.cabal

@@ -14,7 +14,7 @@ copyright:            2016-2021 John Ky
                   ,   2016-2019 Alexey Raga
 license:              BSD-3-Clause
 license-file:         LICENSE
-tested-with:          GHC == 9.2.2, GHC == 9.0.2, GHC == 8.10.7, GHC == 8.8.4, GHC == 8.6.5
+tested-with:          GHC == 9.12.2, GHC == 9.10.2, GHC == 9.8.4, GHC == 9.6.7, GHC == 9.4.4, GHC == 9.0.2, GHC == 8.10.7, GHC == 8.8.4, GHC == 8.6.5
 build-type:           Simple
 extra-source-files:   README.md
 data-files:           data/catalog.xml
@@ -36,8 +36,8 @@ common deepseq                    { build-depends: deepseq                    >=
 common doctest                    { build-depends: doctest                    >= 0.16.2     && < 0.23   }
 common doctest-discover           { build-depends: doctest-discover           >= 0.2        && < 0.3    }
 common generic-lens               { build-depends: generic-lens               >= 2.2        && < 2.3    }
-common ghc-prim                   { build-depends: ghc-prim                   >= 0.5        && < 0.12   }
-common hedgehog                   { build-depends: hedgehog                   >= 1.0        && < 1.5    }
+common ghc-prim                   { build-depends: ghc-prim                   >= 0.5        && < 1      }
+common hedgehog                   { build-depends: hedgehog                   >= 1.0        && < 2      }
 common hspec                      { build-depends: hspec                      >= 2.5        && < 3      }
 common hw-balancedparens          { build-depends: hw-balancedparens          >= 0.3.0.1    && < 0.5    }
 common hw-bits                    { build-depends: hw-bits                    >= 0.7.0.9    && < 0.8    }