diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1308c5a..062cbc3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,8 +11,8 @@ jobs:
 
     strategy:
       matrix:
-        php: [ 8.3, 8.2, 8.1 ]
-        release: [ stable, lowest ]
+        php: [ 8.3 ]
+        release: [ stable ]
         include:
           - php: 8.3
             release: stable
@@ -20,6 +20,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+      - run: echo ${{ hashFiles(format('.docker/php{0}.Dockerfile', matrix.php)) }}
       - uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}