diff --git a/pkgs/development/python-modules/apache-beam/default.nix b/pkgs/development/python-modules/apache-beam/default.nix
index ff12480ceb25..f7e3d3d69e1f 100644
--- a/pkgs/development/python-modules/apache-beam/default.nix
+++ b/pkgs/development/python-modules/apache-beam/default.nix
@@ -86,6 +86,7 @@ buildPythonPackage rec {
   '';
 
   pythonRelaxDeps = [
+    "beartype"
     "grpcio"
     "jsonpickle"