diff --git a/.github/workflows/test-backend.yml b/.github/workflows/test-backend.yml
index e300c9ef..eec8f1d9 100644
--- a/.github/workflows/test-backend.yml
+++ b/.github/workflows/test-backend.yml
@@ -16,12 +16,7 @@ jobs:
       postgres:
         image: postgis/postgis:16-3.4
         env:
-          POSTGRES_SCHEME: postgresql+psycopg
-          POSTGRES_USER: postgres
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_DB: postgres
-          POSTGRES_SERVER: postgres
-          POSTGRES_PORT: 5432
+          DATABASE_URL: postgresql+psycopg://postgres:postgres@postgres:5432/postgres
         ports:
           - 5432:5432
         options: >-
@@ -54,9 +49,4 @@ jobs:
           PROJECT_NAME: Districtr v2 backend
           BACKEND_CORS_ORIGINS: "http://localhost,http://localhost:5173"
           SECRET_KEY: mysupersecretkey
-          POSTGRES_SCHEME: postgresql+psycopg
-          POSTGRES_USER: postgres
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_DB: postgres
-          POSTGRES_SERVER: postgres
-          POSTGRES_PORT: 5432
+          DATABASE_URL: postgresql+psycopg://postgres:postgres@postgres:5432/postgres