diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index b5e72a097..994a41d05 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,5 +1,5 @@
 # For details, see https://github.com/devcontainers/images/tree/main/src/ruby
-FROM mcr.microsoft.com/devcontainers/ruby:1-3.2-bullseye
+FROM mcr.microsoft.com/devcontainers/ruby:1-3.3-bookworm
 
 # Install Rails
 # RUN gem install rails webdrivers