diff --git a/.github/workflows/ci-e2e-no-metrics-tests.yml b/.github/workflows/ci-e2e-no-metrics-tests.yml
index 8f2147b..0c90407 100644
--- a/.github/workflows/ci-e2e-no-metrics-tests.yml
+++ b/.github/workflows/ci-e2e-no-metrics-tests.yml
@@ -18,6 +18,8 @@ jobs:
         run: sudo docker compose -f ci.docker-compose.yml pull
       - name: build and start proxy service and it's dependencies
         run: METRIC_DATABASE_ENABLED=false sudo docker compose -f ci.docker-compose.yml up -d --build proxy redis
+        env:
+            METRIC_DATABASE_ENABLED: false
       - name: wait for proxy service to be running
         run: bash ${GITHUB_WORKSPACE}/scripts/wait-for-proxy-service-running.sh
         env:
diff --git a/ci.docker-compose.yml b/ci.docker-compose.yml
index 4c01c07..c54426f 100644
--- a/ci.docker-compose.yml
+++ b/ci.docker-compose.yml
@@ -2,7 +2,7 @@
 services:
   # run postgres for proxy service to store observability metrics
   postgres:
-    image: postgres:15
+    image: postgres:13.12
     env_file: .env
     ports:
       - "${POSTGRES_HOST_PORT}:${POSTGRES_CONTAINER_PORT}"