diff --git a/python-pkgconfig.spec b/python-pkgconfig.spec
index 8310b3d..9403362 100644
--- a/python-pkgconfig.spec
+++ b/python-pkgconfig.spec
@@ -29,8 +29,8 @@ Source0:        https://files.pythonhosted.org/packages/source/p/pkgconfig/pkgco
 # .. get the tests from github
 Source1:        https://github.com/matze/pkgconfig/archive/v%{version}.tar.gz#/pkgconfig-%{version}-gh.tar.gz
 BuildRequires:  %{python_module pip}
+BuildRequires:  %{python_module poetry-core}
 BuildRequires:  %{python_module pytest}
-BuildRequires:  %{python_module setuptools}
 BuildRequires:  %{python_module wheel}
 BuildRequires:  fdupes
 BuildRequires:  openssl-devel