diff --git a/scripts/start_server.sh b/scripts/start_server.sh
index 71e06535..545825e3 100644
--- a/scripts/start_server.sh
+++ b/scripts/start_server.sh
@@ -11,7 +11,6 @@ python -m relation_engine_server.utils.wait_for services
 python -m relation_engine_server.utils.pull_spec
 
 gunicorn \
-  --worker-class gevent \
   --timeout 1800 \
   --workers $workers \
   --bind :5000 \