diff --git a/.github/workflows/stack.yml b/.github/workflows/stack.yml
index 1088f7d..c8f419b 100644
--- a/.github/workflows/stack.yml
+++ b/.github/workflows/stack.yml
@@ -2,7 +2,7 @@ name: stack
 
 on:
   push:
-    branches: [main, ci-stack]
+    branches: [main, check-versions]
   pull_request:
     branches: [main]
 
@@ -33,52 +33,10 @@ jobs:
       with:
         ghc-version: "8.10.7"
 
-    - name: Configure stack
+    - name: Check installation
       run: |
-        stack config set system-ghc --global true
-        stack config set install-ghc --global false
-
-    - name: Update hackage index
-      run: cabal update --ignore-project
-
-    - name: Install Dhall
-      uses: dhall-lang/setup-dhall@v4
-      with:
-        version: '1.42.0'
-
-    - name: Updo
-      run: GHC_VERSION=${{ matrix.vers.ghc }} STACKAGE_VERSION=${{ matrix.vers.stackage }} make -f project-files.mk stack.yaml
-
-    # Generate a file to cache dependencies.
-    - name: build
-      run: stack ls dependencies json | jq > stack-deps.json
-
-    - name: build
-      run: stack test --no-run-tests --no-terminal --only-dependencies
-
-    - name: Restore cached dependency of Pantry (Stackage package index)
-      uses: actions/cache/restore@v4
-      id: pantry
-      env:
-        key: ghc-${{ steps.setup.outputs.ghc-version }}-stack-${{ steps.setup.outputs.stack-version }}
-      with:
-        path: ${{ steps.setup.outputs.stack-root }}/pantry
-        key: ${{ env.key }}-plan-${{ hashFiles('stack-deps.json') }}
-        restore-keys: ${{ env.key }}-
-
-    - name: Recompute Stackage package index (~/.stack/pantry)
-      if: steps.pantry.outputs.cache-hit != 'true'
-      run: stack update
-
-    - name: Save cached dependencies
-      uses: actions/cache/save@v4
-      if: steps.pantry.outputs.cache-hit != 'true'
-      with:
-        path: ${{ steps.setup.outputs.stack-root }}/pantry
-        key: ${{ steps.cache.outputs.cache-primary-key }}
-
-    - name: build
-      run: stack test --no-run-tests --no-terminal
-
-    - name: test golden
-      run: stack test hpack-dhall:golden --no-terminal --test-arguments "--color=always"
+        ghc --version
+        ghc-9.8.2 --version
+        ghc-8.10.7 --version
+        cabal --version
+        stack --version