diff --git a/pkgs/development/interpreters/ruby/default.nix b/pkgs/development/interpreters/ruby/default.nix
index 5292418c9d4d..8f6694ceb7ee 100644
--- a/pkgs/development/interpreters/ruby/default.nix
+++ b/pkgs/development/interpreters/ruby/default.nix
@@ -441,8 +441,8 @@ in
   };
 
   ruby_3_4 = generic {
-    version = rubyVersion "3" "4" "2" "";
-    hash = "sha256-QTKKwh8r/dfeazVl708N11QzVNN+lvFXoVUqa9DrNks=";
+    version = rubyVersion "3" "4" "3" "";
+    hash = "sha256-VaTNHcvlyifPZeiak1pILCuyKEgyk5JmVRwOxotDf0Y=";
     cargoHash = "sha256-5Tp8Kth0yO89/LIcU8K01z6DdZRr8MAA0DPKqDEjIt0=";
   };
 }