diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index b845dee..fad99b5 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -5,7 +5,7 @@
   "workspaceFolder": "/workspaces/ruby-plsql",
   "features": {
     "ghcr.io/rails/devcontainer/features/ruby:2": {
-      "version": "4.0.3"
+      "version": "4.0.4"
     }
   },
   "customizations": {