diff --git a/python-isodate.spec b/python-isodate.spec
index 55d32cb..34a44b7 100644
--- a/python-isodate.spec
+++ b/python-isodate.spec
@@ -1,3 +1,6 @@
+# Run tests by default.
+%bcond_without  tests
+
 %global srcname isodate
 
 Name:           python-%{srcname}
@@ -10,8 +13,10 @@ Source0:        %pypi_source
 BuildArch:      noarch
 
 BuildRequires:  python3-devel
-BuildRequires:  python3-setuptools
-BuildRequires:  python3-six
+
+%if %{with tests}
+BuildRequires:  python3dist(pytest)
+%endif
 
 
 %global _description This module implements ISO 8601 date, time and duration \
@@ -45,24 +50,30 @@ Summary: %summary
 
 
 %prep
-%autosetup -n %{srcname}-%{version} -p1
+%autosetup -n %{srcname}-%{version}
+
+
+%generate_buildrequires
+%pyproject_buildrequires
 
 
 %build
-%py3_build
+%pyproject_wheel
+
 
 %install
-%py3_install
+%pyproject_install
+%pyproject_save_files %{srcname}
 
 
+%if %{with tests}
 %check
-%{__python3} setup.py test
+%pytest
+%endif
 
 
-%files -n python3-%{srcname}
+%files -n python3-%{srcname} -f %{pyproject_files}
 %doc CHANGES.txt README.rst TODO.txt
-%{python3_sitelib}/%{srcname}-*.egg-info/
-%{python3_sitelib}/%{srcname}/
 
 
 %changelog