diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 28c1ae0..4fc1131 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -29,13 +29,14 @@ jobs:
           load: true
           files: |
             docker-compose.yml
+            docker-compose.ci.yml
           set: |
             *.cache-from=type=gha,scope=${{github.ref}}
             *.cache-from=type=gha,scope=refs/heads/master
             *.cache-to=type=gha,scope=${{github.ref}},mode=max
 
       - name: Start services
-        run: docker compose up -d
+        run: docker compose -f docker-compose.yml -f docker-compose.ci.yml up -d
 
       - name: Install dependencies
         run: docker compose exec -T php composer install
diff --git a/app/composer.json b/app/composer.json
index ba24891..71396dc 100644
--- a/app/composer.json
+++ b/app/composer.json
@@ -46,8 +46,7 @@
             "phpstan/extension-installer": true
         },
         "preferred-install": {
-            "phpstan/phpstan": "dist",
-            "symfony/*": "source"
+            "phpstan/phpstan": "dist"
         },
         "sort-packages": true
     },
diff --git a/docker-compose.ci.yml b/docker-compose.ci.yml
new file mode 100644
index 0000000..3bde654
--- /dev/null
+++ b/docker-compose.ci.yml
@@ -0,0 +1,5 @@
+version: "3.9"
+
+services:
+  php:
+    volumes: !reset []