diff --git a/src/config.js b/src/config.js
index 7bc060c..20107a0 100644
--- a/src/config.js
+++ b/src/config.js
@@ -6,11 +6,9 @@ module.exports = {
     port: 8001,
   },
   db: {
-    host: '127.0.0.1',
-    port: 5432,
-    database: 'example',
-    user: 'marcus',
-    password: 'marcus',
+    connectionString:
+      process.env.PG_CONNECTION_STRING ||
+      'postgresql://marcus:marcus@127.0.0.1:5432/example',
   },
   transport: 'http',
 };