diff --git a/pkgs/dev/ruby/default.nix b/pkgs/dev/ruby/default.nix
index 5543899acbd1bf0013f42d6b0e746ebbbc6e113c..a5c4b61e8d78dc3d9c436205c7e124b32624c672 100644
--- a/pkgs/dev/ruby/default.nix
+++ b/pkgs/dev/ruby/default.nix
@@ -6,6 +6,11 @@
   ];
 
   environment.systemPackages = with pkgs; [
-    ruby_3_1
+    (ruby_3_1.withPackages (p: with p; [
+      # other python packages
+      rspec-core
+    ]))
+
+    #system packages for python
   ];
 }