diff --git a/.github/workflows/postgres-service.yml b/.github/workflows/postgres-service.yml
index 8a23399..7160a41 100644
--- a/.github/workflows/postgres-service.yml
+++ b/.github/workflows/postgres-service.yml
@@ -15,6 +15,7 @@ jobs:
           POSTGRES_DB: postgres
         ports:
         - 5432:5432
+        # needed because the postgres container does not provide a healthcheck
         options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
 
       redis: