diff --git a/pkgs/puppet-editor-services/package.nix b/pkgs/puppet-editor-services/package.nix
index 0b353a4..521999b 100644
--- a/pkgs/puppet-editor-services/package.nix
+++ b/pkgs/puppet-editor-services/package.nix
@@ -1,8 +1,10 @@
 {
   bundlerApp,
+  ruby_3_4,
 }:
 bundlerApp {
   pname = "puppet-editor-services";
   gemdir = ./.;
+  ruby = ruby_3_4;
   exes = [ "puppet-languageserver" ];
 }