diff --git a/percona-xtradb-cluster-5.6/Dockerfile b/percona-xtradb-cluster-5.6/Dockerfile
index 9412532f8..e502ae6a5 100644
--- a/percona-xtradb-cluster-5.6/Dockerfile
+++ b/percona-xtradb-cluster-5.6/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:xenial
+FROM ubuntu:xenial-20210416
 MAINTAINER Percona Development <info@percona.com>
 
 RUN groupadd -g 1001 mysql