diff --git a/HISTORY.rst b/HISTORY.rst
index c86300b421..5253009789 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,3 +1,8 @@
+3.3.4 (2019-12-XX)
+==================
+- Update the gunicorn worker class to synchronous.
+
+
 3.3.3 (2019-12-05)
 ==================
 - Fix transformation label display in transformation create view.
diff --git a/mayan/apps/platform/templates/platform/supervisord.tmpl b/mayan/apps/platform/templates/platform/supervisord.tmpl
index a2211f4396..f13a50a342 100644
--- a/mayan/apps/platform/templates/platform/supervisord.tmpl
+++ b/mayan/apps/platform/templates/platform/supervisord.tmpl
@@ -11,7 +11,7 @@ environment=
 [program:mayan-gunicorn]
 autorestart = true
 autostart = true
-command = {{ INSTALLATION_PATH }}/bin/gunicorn -w {{ GUNICORN_WORKERS }} mayan.wsgi --max-requests 500 --max-requests-jitter 50 --worker-class gevent --bind 0.0.0.0:8000 --timeout {{ GUNICORN_TIMEOUT }}
+command = {{ INSTALLATION_PATH }}/bin/gunicorn -w {{ GUNICORN_WORKERS }} mayan.wsgi --max-requests 500 --max-requests-jitter 50 --worker-class sync --bind 0.0.0.0:8000 --timeout {{ GUNICORN_TIMEOUT }}
 user = mayan
 
 {% for worker in workers %}