diff --git a/.travis.yml b/.travis.yml
index 1fc321e..ec969d1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,10 +15,11 @@ _iot-simulator: &iot-simulator
       - docker-compose -f docker/docker-compose.yml build
     before_script:
       - docker-compose -f docker/docker-compose.yml -f docker/edge/docker-compose.edge.yml up -d
+      - sleep 30  # warm-up
       - DOCKER_HOST='127.0.0.1:22375' docker-compose -f docker/edge/docker-compose.modules.yml pull
       - DOCKER_HOST='127.0.0.1:22375' docker-compose -f docker/edge/docker-compose.modules.yml build
     script:
-      - sleep 30  # warm-up
+      - sleep 5  # warm-up
       - sed -i 's/# IOT_SERIAL/IOT_SERIAL/g' docker/edge/docker-compose.modules.yml
       - DOCKER_HOST='127.0.0.1:22375' docker-compose -f docker/edge/docker-compose.modules.yml up -d
       - sleep 30  # collect some telemetry