diff --git a/shells/devsh/default.nix b/shells/devsh/default.nix
index cb5958b..714f626 100644
--- a/shells/devsh/default.nix
+++ b/shells/devsh/default.nix
@@ -16,9 +16,9 @@ pkgs.mkShell {
     yarn-berry
     crystal
     shards
-    python311Full
+    python35
     virtualenv
-    (with python311Packages; [ pip ])
+    (with python315Packages; [ pip pandas numpy matplotlib typer Pillow reportlab python-barcode pypdf markdown requests pdf417 ])
     pipenv
     scala
     sbt