diff --git a/python-flickrapi.spec b/python-flickrapi.spec
index 574bbd9..cb92c04 100644
--- a/python-flickrapi.spec
+++ b/python-flickrapi.spec
@@ -29,17 +29,15 @@ Source0:        https://files.pythonhosted.org/packages/source/f/flickrapi/flick
 Patch0:         python-flickrapi-no-python2.patch
 BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module poetry}
-BuildRequires:  %{python_module requests-oauthlib}
-BuildRequires:  %{python_module requests-toolbelt}
-BuildRequires:  %{python_module requests}
+BuildRequires:  %{python_module requests-oauthlib >= 0.4.2}
+BuildRequires:  %{python_module requests-toolbelt >= 0.3.1}
+BuildRequires:  %{python_module requests >= 2.4.3}
 BuildRequires:  %{python_module setuptools}
-BuildRequires:  %{python_module six}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Requires:       python-requests >= 2.4.3
 Requires:       python-requests-oauthlib >= 0.4.2
 Requires:       python-requests-toolbelt >= 0.3.1
-Requires:       python-six >= 1.8.0
 BuildArch:      noarch
 %ifpython2
 Provides:       python-flickrapi-doc = %{version}