diff --git a/flake.nix b/flake.nix
index f6c6b45..4eaf992 100644
--- a/flake.nix
+++ b/flake.nix
@@ -81,6 +81,7 @@
           rPackages.xtable
           rPackages.ggsci
           rPackages.profoc
+          rPackages.ggforce
 
         ];