diff --git a/packages.nix b/packages.nix
index 9b54bf1..3744dc4 100644
--- a/packages.nix
+++ b/packages.nix
@@ -15,6 +15,8 @@
       statsmodels
       scikit-learn
       sympy
+      jupyter-core
+      matplotlib
     ];
     myRPackages = with pkgs.rPackages; [
       reticulate # wanted by quarto to execute Python when using R.