diff --git a/test3.Dockerfile b/test3.Dockerfile
index cdc9a11..00c6a5e 100644
--- a/test3.Dockerfile
+++ b/test3.Dockerfile
@@ -3,7 +3,7 @@
 # The Ubuntu-based CircleCI Docker Image. Only use Ubuntu Long-Term Support
 # (LTS) releases.
 
-FROM ubuntu:18.04
+FROM ubuntu:22.04
 
 LABEL maintainer="CircleCI <support@circleci.com>"