--- a/tests/src/config.ts
+++ b/tests/src/config.ts
@@ -6,7 +6,7 @@
 import process from 'process';
 
 const config = {
-  substrateUrl: process.env.substrateUrl || 'ws://127.0.0.1:9844',
+  substrateUrl: process.env.substrateUrl || 'ws://127.0.0.1:9944',
 };
 
 export default config;
\ No newline at end of file