diff --git a/.ruby-version b/.ruby-version
index 7636e756..d13e837c 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-4.0.5
+4.0.6
diff --git a/Gemfile b/Gemfile
index ff94ceba..4c294cb5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source "https://rubygems.org"
-ruby "4.0.5"
+ruby "4.0.6"
 
 gem "rails"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 20465996..52237a9c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -795,7 +795,7 @@ DEPENDENCIES
   yabeda-rails
 
 RUBY VERSION
-  ruby 4.0.5
+  ruby 4.0.6
 
 BUNDLED WITH
   4.0.3