diff --git a/overrides.nix b/overrides.nix
index 7c7d0eb..8b550eb 100644
--- a/overrides.nix
+++ b/overrides.nix
@@ -633,6 +633,12 @@ self: super:
       # dependencies. It does however have a jupyter.py file that conflicts
       # with jupyter-core so this meta solves this conflict.
       meta.priority = 100;
+      
+      # remove, what is already present in jupyter-core
+      postInstall = ''
+        rm -f $out/lib/python*/site-packages/__pycache__/jupyter.cpython-39.pyc
+        rm -f $out/lib/python*/site-packages/jupyter.py
+      '';
     }
   );
 
@@ -641,6 +647,15 @@ self: super:
       buildInputs = (old.buildInputs or [ ]) ++ [ self.jupyter-packaging ];
     }
   );
+  
+  jupyter-core = super.jupyter-core.overridePythonAttrs (
+    old: {
+      postInstall = ''
+        rm -f $out/lib/python*/site-packages/__pycache__/jupyter.cpython-39.pyc
+        rm -f $out/lib/python*/site-packages/jupyter.py
+      '';
+    }
+  );
 
   kerberos = super.kerberos.overrideAttrs (old: {
     nativeBuildInputs = (old.nativeBuildInputs or [ ]) ++ [ pkgs.libkrb5 ];