diff --git a/python-construct.spec b/python-construct.spec
index 58c2d8d..7884904 100644
--- a/python-construct.spec
+++ b/python-construct.spec
@@ -46,11 +46,12 @@ BuildArch:      noarch
 %if %{with test}
 BuildRequires:  %{python_module arrow}
 BuildRequires:  %{python_module cloudpickle}
+BuildRequires:  %{python_module cryptography}
 BuildRequires:  %{python_module lz4}
+BuildRequires:  %{python_module numpy}
 BuildRequires:  %{python_module pytest-benchmark}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module ruamel.yaml}
-BuildRequires:  %{python_module numpy if (%python-base without python36-base)}
 %endif
 %python_subpackages