diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index c6ac2e635..b871287d4 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,5 +1,5 @@
 ARG RUBY_VERSION=3.4.7
-FROM ruby:${RUBY_VERSION}-slim-bullseye
+FROM ruby:${RUBY_VERSION}-slim-bookworm
 
 ENV DEBIAN_FRONTEND=noninteractive