diff --git a/docker-compose.yml b/docker-compose.yml
index 267d3c02..c98f4794 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -15,6 +15,7 @@ services:
       - "8000:8000"
     volumes:
       - "${PWD}:/app"
+      - /app/.tox
     command: gunicorn pyslackersweb:app_factory --access-logfile - --bind=0.0.0.0:8000 --worker-class=aiohttp.GunicornWebWorker --reload
 
   redis: