diff --git a/pkgs/tools/misc/lolcat/default.nix b/pkgs/tools/misc/lolcat/default.nix
index b91c5c9967ee..3f7f79433d17 100644
--- a/pkgs/tools/misc/lolcat/default.nix
+++ b/pkgs/tools/misc/lolcat/default.nix
@@ -1,10 +1,11 @@
 {
   lib,
   bundlerApp,
+  ruby_3_4,
   bundlerUpdateScript,
 }:
 
-bundlerApp {
+(bundlerApp.override { ruby = ruby_3_4; }) {
   pname = "lolcat";
   gemdir = ./.;
   exes = [ "lolcat" ];