diff --git a/pkgs/development/python-modules/jupyterlab-lsp/default.nix b/pkgs/development/python-modules/jupyterlab-lsp/default.nix
index 5ebdb8ae5f59..b7d5ce4cf0c9 100644
--- a/pkgs/development/python-modules/jupyterlab-lsp/default.nix
+++ b/pkgs/development/python-modules/jupyterlab-lsp/default.nix
@@ -28,5 +28,8 @@ buildPythonPackage rec {
     license = licenses.bsd3;
     platforms = platforms.all;
     maintainers = with maintainers; [ ];
+    # No support for Jupyterlab > 4
+    # https://github.com/jupyter-lsp/jupyterlab-lsp/pull/949
+    broken = lib.versionAtLeast jupyterlab.version "4.0";
   };
 }