diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 8b75643..18b5310 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,4 +1,5 @@
-FROM mcr.microsoft.com/devcontainers/base:ubuntu-24.04
+# Standardized to approved base image (ubuntu:22.04 instead of ubuntu-24.04 devcontainer base)
+FROM ubuntu:22.04
 
 # use this Dockerfile to install additional tools you might need, e.g.
 # RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \