diff --git a/pkgs/development/interpreters/ruby/default.nix b/pkgs/development/interpreters/ruby/default.nix
index b425670fab48..244152b2b4af 100644
--- a/pkgs/development/interpreters/ruby/default.nix
+++ b/pkgs/development/interpreters/ruby/default.nix
@@ -322,8 +322,8 @@ in {
   };
 
   ruby_3_1 = generic {
-    version = rubyVersion "3" "1" "4" "";
-    sha256 = "sha256-o9VYeaDfqx1xQf3xDSKgfb+OXNxEFdob3gYSfVzDx7Y=";
+    version = rubyVersion "3" "1" "5" "";
+    sha256 = "sha256-NoXFHu7hNSwx6gOXBtcZdvU9AKttdzEt5qoauvXNosU=";
   };
 
   ruby_3_2 = generic {