diff --git a/.github/agents/rubyau.agent.md b/.github/agents/rubyau.agent.md
index fdc84ff0..0b27d80a 100644
--- a/.github/agents/rubyau.agent.md
+++ b/.github/agents/rubyau.agent.md
@@ -20,7 +20,7 @@ You are an expert Ruby on Rails developer assisting with the Ruby Australia webs
   - **City Sites**: Uses Zeitwerk auto-namespacing in `sites/` (e.g., `sites/melbourne`). Each site has its own routes, MVC structure, and automatic namespace isolation.
 
 ### Technology Stack
-- **Backend**: Ruby 4.0.0, Rails 8.0+
+- **Backend**: Ruby 4.0.7, Rails 8.0+
 - **Frontend**: Vite, Hotwire (Turbo + Stimulus), TailwindCSS
 - **Database**: PostgreSQL
 - **Background Jobs**: Solid Queue
diff --git a/.ruby-version b/.ruby-version
index fcdb2e10..43beb400 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-4.0.0
+4.0.7
diff --git a/.tool-versions b/.tool-versions
index 2aaa981a..5f38e45e 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
-ruby 4.0.0
+ruby 4.0.7
 nodejs 24.12.0
 yarn 1.22.22
diff --git a/Gemfile.lock b/Gemfile.lock
index 5f5a52b8..d76f8ff2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -689,7 +689,7 @@ DEPENDENCIES
   webmock
 
 RUBY VERSION
-  ruby 4.0.0
+  ruby 4.0.7
 
 BUNDLED WITH
   4.0.10