diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 19470c09..b261580f 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -8,9 +8,9 @@
 #
 # For more information, see https://github.com/haskell-CI/haskell-ci
 #
-# version: 0.19.20250330
+# version: 0.19.20250506
 #
-# REGENDATA ("0.19.20250330",["github","cabal.project"])
+# REGENDATA ("0.19.20250506",["github","cabal.project"])
 #
 name: Haskell-CI
 on:
@@ -40,9 +40,9 @@ jobs:
             compilerVersion: 9.12.2
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-9.10.1
+          - compiler: ghc-9.10.2
             compilerKind: ghc
-            compilerVersion: 9.10.1
+            compilerVersion: 9.10.2
             setup-method: ghcup
             allow-failure: false
           - compiler: ghc-9.8.4
@@ -95,8 +95,8 @@ jobs:
           chmod a+x "$HOME/.ghcup/bin/ghcup"
       - name: Install cabal-install
         run: |
-          "$HOME/.ghcup/bin/ghcup" install cabal 3.14.1.1-p1 || (cat "$HOME"/.ghcup/logs/*.* && false)
-          echo "CABAL=$HOME/.ghcup/bin/cabal-3.14.1.1-p1 -vnormal+nowrap" >> "$GITHUB_ENV"
+          "$HOME/.ghcup/bin/ghcup" install cabal 3.14.2.0 || (cat "$HOME"/.ghcup/logs/*.* && false)
+          echo "CABAL=$HOME/.ghcup/bin/cabal-3.14.2.0 -vnormal+nowrap" >> "$GITHUB_ENV"
       - name: Install GHC (GHCup)
         if: matrix.setup-method == 'ghcup'
         run: |
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 6755fe8b..a855ffa6 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04  # FIXME
+    runs-on: ubuntu-latest
     name: Nix Flake - Linux
     permissions:
       contents: read
@@ -14,11 +14,7 @@ jobs:
       - name: Install Nix
         uses: cachix/install-nix-action@v31
         with:
-          install_url: https://nixos-nix-install-tests.cachix.org/serve/i6laym9jw3wg9mw6ncyrk6gjx4l34vvx/install
-          install_options: '--tarball-url-prefix https://nixos-nix-install-tests.cachix.org/serve'
-          extra_nix_config: |
-            experimental-features = nix-command flakes
-            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
       - name: Clone project
         uses: actions/checkout@v4
       - name: Build
diff --git a/xmonad-contrib.cabal b/xmonad-contrib.cabal
index 1ef8080f..d330977b 100644
--- a/xmonad-contrib.cabal
+++ b/xmonad-contrib.cabal
@@ -38,7 +38,7 @@ cabal-version:      1.12
 build-type:         Simple
 bug-reports:        https://github.com/xmonad/xmonad-contrib/issues
 
-tested-with:        GHC == 8.8.4 || == 8.10.7 || == 9.0.2 || == 9.2.8 || == 9.4.8 || == 9.6.7 || == 9.8.4 || == 9.10.1 || == 9.12.2
+tested-with:        GHC == 8.8.4 || == 8.10.7 || == 9.0.2 || == 9.2.8 || == 9.4.8 || == 9.6.7 || == 9.8.4 || == 9.10.2 || == 9.12.2
 
 source-repository head
   type:     git