diff --git a/pkgs/development/python-modules/pykalman/default.nix b/pkgs/development/python-modules/pykalman/default.nix
index 4d8b902b46b7..1be45692ea17 100644
--- a/pkgs/development/python-modules/pykalman/default.nix
+++ b/pkgs/development/python-modules/pykalman/default.nix
@@ -29,6 +29,8 @@ buildPythonPackage rec {
     scikit-base
   ];
 
+  pythonRelaxDeps = [ "scikit-base" ];
+
   nativeCheckInputs = [ pytestCheckHook ];
   pythonImportsCheck = [ "pykalman" ];