diff --git a/hub/test/integration/helpers.ts b/hub/test/integration/helpers.ts
index aca8e73..dd941d2 100644
--- a/hub/test/integration/helpers.ts
+++ b/hub/test/integration/helpers.ts
@@ -19,7 +19,9 @@ import type { FeishuRuntime } from "../../src/feishu/client.js";
 import type { ModelFactory } from "../../src/agent/runner.js";
 import { LocalSecretEnvelope } from "../../src/security/secretEnvelope.js";
 
-export const TEST_DATABASE_URL = "postgresql://paradigm:paradigm@127.0.0.1:5432/cph_hub_test";
+export const TEST_DATABASE_URL =
+  process.env.DATABASE_URL?.trim() ||
+  "postgresql://paradigm:paradigm@127.0.0.1:5432/cph_hub_test";
 export const DEFAULT_ORG_ID = "org_test_default";
 export const TEST_SECRET_KEY_ID = "test-active";
 export const TEST_SECRET_KEY = Buffer.alloc(32, "k");