diff --git a/README.md b/README.md
index 18a40c15..5b7aca62 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,11 @@ jobs:
 
     services:
       db:
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_DB: postgres
+          POSTGRES_PASSWORD: super_secret_password
+          # POSTGRES_HOST_AUTH_METHOD: trust # disables POSTGRES_PASSWORD and allows all local connections. Use with caution
         image: postgres:11
         ports: ['5432:5432']
         options: >-