diff --git a/.gitea/workflows/deploy.yaml b/.gitea/workflows/deploy.yaml
index bdd36b1..1c4eeca 100644
--- a/.gitea/workflows/deploy.yaml
+++ b/.gitea/workflows/deploy.yaml
@@ -9,6 +9,8 @@ jobs:
   qa:
     name: QA gates
     runs-on: ubuntu-latest
+    env:
+      COMPOSE_PROJECT_NAME: breadcrumb-ci
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -16,16 +18,14 @@ jobs:
       - name: Create .env for CI
         run: cp .env.example .env
 
-      - name: Install Composer dependencies
-        run: |
-          curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
-          composer install --no-dev --no-interaction --prefer-dist --optimize-autoloader
-
       - name: Start project services
         run: |
           docker compose down --remove-orphans 2>/dev/null || true
           docker compose up -d --force-recreate php db memcached
-          sleep 10
+          sleep 15
+
+      - name: Install Composer dependencies
+        run: docker compose exec -T php bash -c "composer install --no-dev --no-interaction --prefer-dist --optimize-autoloader"
 
       - name: Run required QA gates
         run: bin/qa-required.sh
diff --git a/.gitea/workflows/qa-required.yaml b/.gitea/workflows/qa-required.yaml
index 85e8706..714cb78 100644
--- a/.gitea/workflows/qa-required.yaml
+++ b/.gitea/workflows/qa-required.yaml
@@ -10,6 +10,8 @@ jobs:
   qa-required:
     name: qa-required
     runs-on: ubuntu-latest
+    env:
+      COMPOSE_PROJECT_NAME: breadcrumb-ci
 
     # Phase 1: workflow is present and runnable, but branch protection does not
     # require this check yet. Enable required checks in Phase 2.
@@ -20,16 +22,14 @@ jobs:
       - name: Create .env for CI
         run: cp .env.example .env
 
-      - name: Install Composer dependencies
-        run: |
-          curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
-          composer install --no-dev --no-interaction --prefer-dist --optimize-autoloader
-
       - name: Start project services
         run: |
           docker compose down --remove-orphans 2>/dev/null || true
           docker compose up -d --force-recreate php db memcached
-          sleep 10
+          sleep 15
+
+      - name: Install Composer dependencies
+        run: docker compose exec -T php bash -c "composer install --no-dev --no-interaction --prefer-dist --optimize-autoloader"
 
       - name: Run required QA gates
         run: bin/qa-required.sh