diff --git a/.ruby-version b/.ruby-version
index fcdb2e10..c4e41f94 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-4.0.0
+4.0.3
diff --git a/Gemfile b/Gemfile
index 1824fdfb..a8558f43 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source "https://rubygems.org"
-ruby "4.0.0"
+ruby "4.0.3"
 
 gem "rails"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index b3e769b8..0d851c19 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -701,7 +701,7 @@ DEPENDENCIES
   yabeda-rails
 
 RUBY VERSION
-  ruby 4.0.0p0
+  ruby 4.0.3
 
 BUNDLED WITH
   4.0.3