diff --git a/defaults/docker_images.yml b/defaults/docker_images.yml
index c24acf6..289988b 100644
--- a/defaults/docker_images.yml
+++ b/defaults/docker_images.yml
@@ -32,7 +32,7 @@
     docker_image_alertmanager: "${_param:mcp_docker_registry}/openstack-docker/alertmanager:2019.2.4"
     docker_image_grafana: "${_param:mcp_docker_registry}/openstack-docker/grafana:${_param:mcp_version}"
     docker_image_prometheus_es_exporter: "${_param:mcp_docker_registry}/openstack-docker/prometheus-es-exporter:2019.2.6"
-    docker_image_prometheus: "${_param:mcp_docker_registry}/openstack-docker/prometheus:${_param:mcp_version}"
+    docker_image_prometheus: "${_param:mcp_docker_registry}/openstack-docker/prometheus:2019.2.6"
     docker_image_prometheus_gainsight: "${_param:mcp_docker_registry}/openstack-docker/gainsight:2019.2.4"
     docker_image_prometheus_gainsight_elasticsearch: "${_param:mcp_docker_registry}/openstack-docker/gainsight_elasticsearch:${_param:mcp_version}"
     docker_image_prometheus_relay: "${_param:mcp_docker_registry}/openstack-docker/prometheus-relay:2019.2.5"
@@ -118,7 +118,7 @@
           name: pushgateway:${_param:mcp_version}
         - registry: ${_param:mcp_docker_registry}/openstack-docker
           target_registry: ${_param:default_local_mirrror_content:docker_client_registry_target_registry}/openstack-docker
-          name: prometheus:${_param:mcp_version}
+          name: prometheus:2019.2.6
         - registry: ${_param:mcp_docker_registry}/openstack-docker
           target_registry: ${_param:default_local_mirrror_content:docker_client_registry_target_registry}/openstack-docker
           name: gainsight:2019.2.4