diff --git a/dev/ci/docker_linux/Dockerfile b/dev/ci/docker_linux/Dockerfile
index 30d9f9cf50..f3f328f6ab 100644
--- a/dev/ci/docker_linux/Dockerfile
+++ b/dev/ci/docker_linux/Dockerfile
@@ -12,7 +12,7 @@
 
 # Last manual update 2021-09-24 (changing this comment will re-build image)
 
-FROM debian@sha256:68c1f6bae105595d2ebec1589d9d476ba2939fdb11eaba1daec4ea826635ce75
+FROM ubuntu:bionic@sha256:e4771b7160543c6e43968b4e9795be9ddcad9d573edd7cd7aebd3ce61326fc7a
 MAINTAINER Flutter Developers <flutter-dev@googlegroups.com>
 
 RUN apt-get update -y && \