diff --git a/deployment/heat/heat-api-container-puppet.yaml b/deployment/heat/heat-api-container-puppet.yaml
index 97e87bcd63..d5c58b3f3e 100644
--- a/deployment/heat/heat-api-container-puppet.yaml
+++ b/deployment/heat/heat-api-container-puppet.yaml
@@ -133,6 +133,7 @@ outputs:
                 params:
                   $NETWORK: {get_param: [ServiceNetMap, HeatApiNetwork]}
             heat::wsgi::apache_api::ssl: {get_param: EnableInternalTLS}
+            heat::wsgi::apache_api::vhost_custom_fragment: 'Timeout 600'
             heat::policy::policies: {get_param: HeatApiPolicies}
             heat::api::service_name: 'httpd'
             # NOTE: bind IP is found in hiera replacing the network name with the local node IP