diff --git a/docker-compose.yaml b/docker-compose.yaml
index 7f16a02..63e56a4 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -5,7 +5,7 @@ services:
     image: "swift:latest"
     volumes:
       - .:/workspace
-    hostname: iot-simulator.internal
+    hostname: root-ca.internal
     networks:
       iot-network:
     command: sleep infinity