Install R packages
diff --git a/modules/calculator.nix b/modules/calculator.nix
index b497332..7d5951b 100644
--- a/modules/calculator.nix
+++ b/modules/calculator.nix
@@ -1,3 +1,9 @@
-{pkgs, ...}: {
+{pkgs, ...}: let
+  R = pkgs.rWrapper.override {
+    packages = with pkgs.rPackages; [
+      zoo
+    ];
+  };
+in {
   home.home.packages = with pkgs; [wcalc R];
 }