diff --git a/vendor/github.com/docker/docker/Dockerfile.dapper b/vendor/github.com/docker/docker/Dockerfile.dapper
index 6a6a18c6..ab2703fb 100644
--- a/vendor/github.com/docker/docker/Dockerfile.dapper
+++ b/vendor/github.com/docker/docker/Dockerfile.dapper
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:xenial-20210416
 
 # Packaged dependencies
 RUN apt-get update && apt-get install -y \