diff --git a/src/Runtimes/Runtimes.php b/src/Runtimes/Runtimes.php
index 52787912..ad3a791b 100644
--- a/src/Runtimes/Runtimes.php
+++ b/src/Runtimes/Runtimes.php
@@ -29,7 +29,7 @@ public function __construct()
 
         $ruby = new Runtime('ruby', 'Ruby');
         $ruby->addVersion('3.0', 'ruby:3.0-alpine', 'openruntimes/ruby:3.0', [System::X86, System::ARM]);
-        $ruby->addVersion('3.0', 'ruby:3.1-alpine', 'openruntimes/ruby:3.1', [System::X86, System::ARM]);
+        $ruby->addVersion('3.1', 'ruby:3.1-alpine', 'openruntimes/ruby:3.1', [System::X86, System::ARM]);
         $this->runtimes['ruby'] = $ruby;
 
         $python = new Runtime('python', 'Python');