diff --git a/modules/nixvim/dev-plugins.nix b/modules/nixvim/dev-plugins.nix
index 4e3424e..fdfaff1 100644
--- a/modules/nixvim/dev-plugins.nix
+++ b/modules/nixvim/dev-plugins.nix
@@ -44,13 +44,12 @@ in
             enable = true;
             servers = {
               # Pyright needs to have the project root set?
-              basedpyright.rootMarkers = [
-                "flake.nix"
-                ".git"
-                ".jj"
-                "pyproject.toml"
-                "setup.py"
-              ];
+              basedpyright.rootDir = # lua
+                ''
+                  function()
+                    return vim.fs.root(0, {'flake.nix', '.git', '.jj', 'pyproject.toml', 'setup.py'})
+                  end
+                '';
               # Big but infrequently used dependencies.
               #
               # Configure the LSPs, but don't install the packages.