diff --git a/pkgs/development/interpreters/ruby/default.nix b/pkgs/development/interpreters/ruby/default.nix
index 22d04a3499bc..a713c5a3702d 100644
--- a/pkgs/development/interpreters/ruby/default.nix
+++ b/pkgs/development/interpreters/ruby/default.nix
@@ -425,8 +425,8 @@ in
   };
 
   ruby_3_3 = generic {
-    version = rubyVersion "3" "3" "8" "";
-    hash = "sha256-WuKKh6WaPkrWa8KTHSMturlT0KqPa687xPj4CXfInKs=";
+    version = rubyVersion "3" "3" "9" "";
+    hash = "sha256-0ZkWkKThcjPsazx4RMHhJFwK3OPgDXE1UdBFhGe3J7E=";
     cargoHash = "sha256-xE7Cv+NVmOHOlXa/Mg72CTSaZRb72lOja98JBvxPvSs=";
   };