diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index e65a47d..6ed2be9 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -17,11 +17,17 @@ 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: ["9.14.1", "9.12.4", "9.10.3", "9.8.4", "9.6.7", "9.4.8"]
         os: [ubuntu-latest, macOS-latest, windows-latest]
         exclude:
+        # GHC 9.14.1 on Windows: ghc-paths' custom Setup is incompatible with
+        # the bundled Cabal 3.16, so the doctest dependency cannot be solved.
         - os: windows-latest
-          ghc: "9.4.2"
+          ghc: "9.14.1"
+        # GHC 9.4.8 on Windows: doctest cannot locate the chocolatey-installed
+        # ghc.exe, so the doctest suite fails to run.
+        - os: windows-latest
+          ghc: "9.4.8"
 
     env:
       # Modify this value to "invalidate" the cabal cache.
diff --git a/hw-bits.cabal b/hw-bits.cabal
index 1cf2d1c..f857982 100644
--- a/hw-bits.cabal
+++ b/hw-bits.cabal
@@ -13,7 +13,7 @@ maintainer:             newhoggy@gmail.com
 copyright:              2016-2020 John Ky
 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 == 9.14.1, GHC == 9.12.4, GHC == 9.10.3, GHC == 9.8.4, GHC == 9.6.7, GHC == 9.4.8, GHC == 9.2.8, GHC == 9.0.2, GHC == 8.10.7, GHC == 8.8.4
 build-type:             Simple
 extra-source-files:     README.md
 
@@ -32,9 +32,9 @@ common bitvec                     { build-depends: bitvec                     >=
 common bytestring                 { build-depends: bytestring                 >= 0.9        && < 0.13   }
 common criterion                  { build-depends: criterion                  >= 1.2        && < 1.7    }
 common deepseq                    { build-depends: deepseq                    >= 1.4        && < 1.6    }
-common doctest                    { build-depends: doctest                    >= 0.16.2     && < 0.23   }
+common doctest                    { build-depends: doctest                    >= 0.16.2     && < 0.26   }
 common doctest-discover           { build-depends: doctest-discover           >= 0.2        && < 0.3    }
-common hedgehog                   { build-depends: hedgehog                   >= 0.6        && < 1.5    }
+common hedgehog                   { build-depends: hedgehog                   >= 0.6        && < 1.8    }
 common hspec                      { build-depends: hspec                      >= 2.4        && < 3      }
 common hw-hspec-hedgehog          { build-depends: hw-hspec-hedgehog          >= 0.1.0.4    && < 0.2    }
 common hw-int                     { build-depends: hw-int                     >= 0.0.0.1    && < 0.1    }