diff --git a/12/Dockerfile b/12/Dockerfile
index c40f6c7..7da441f 100644
--- a/12/Dockerfile
+++ b/12/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 
 LABEL org.opencontainers.image.source="https://github.com/cpp-linter/clang-tools-docker"
 LABEL org.opencontainers.image.description="The Clang Tools Docker image includes the clang-format and clang-tidy."