diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 2ff132a1..de54755a 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,3 +1,3 @@
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version
-ARG RUBY_VERSION=3.4.10@sha256:deffb4e6de73422dfe0b93384f6a82e530040048e2df4256aa0f6b22a4cffdff
+ARG RUBY_VERSION=3.4.12@sha256:5537e13ccd7d21f2daad8e477e0731ad9033d95a5f27ed880d9b11a4d490c165
 FROM ghcr.io/rails/devcontainer/images/ruby:$RUBY_VERSION