diff --git a/packages/nice-grpc-client-middleware-devtools/src/index.test.ts b/packages/nice-grpc-client-middleware-devtools/src/index.test.ts
index cd9182f2..22a3bc26 100644
--- a/packages/nice-grpc-client-middleware-devtools/src/index.test.ts
+++ b/packages/nice-grpc-client-middleware-devtools/src/index.test.ts
@@ -48,9 +48,9 @@ describe('devtools', () => {
       testBidiStream: throwUnimplemented,
     });
 
-    const port = await server.listen('localhost:0');
+    const port = await server.listen('127.0.0.1:0');
 
-    const channel = createChannel(`localhost:${port}`);
+    const channel = createChannel(`127.0.0.1:${port}`);
     const client = createClientFactory()
       .use(devtoolsLoggingMiddleware)
       .create(TestService, channel);
@@ -93,9 +93,9 @@ describe('devtools', () => {
       testBidiStream: throwUnimplemented,
     });
 
-    const port = await server.listen('localhost:0');
+    const port = await server.listen('127.0.0.1:0');
 
-    const channel = createChannel(`localhost:${port}`);
+    const channel = createChannel(`127.0.0.1:${port}`);
     const client = createClientFactory()
       .use(devtoolsLoggingMiddleware)
       .create(TestDefinition, channel);