diff --git a/python-async_generator.changes b/python-async_generator.changes
index 86c2c7e..e72b7e2 100644
--- a/python-async_generator.changes
+++ b/python-async_generator.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu May 10 15:51:01 UTC 2018 - toddrme2178@gmail.com
+
+- Set minimum python3 version
+
 -------------------------------------------------------------------
 Tue Mar 27 16:26:01 UTC 2018 - jengelh@inai.de
 
diff --git a/python-async_generator.spec b/python-async_generator.spec
index d504447..c3a1876 100644
--- a/python-async_generator.spec
+++ b/python-async_generator.spec
@@ -26,11 +26,14 @@ License:        MIT
 Group:          Development/Languages/Python
 Url:            https://github.com/python-trio/async_generator
 Source:         https://files.pythonhosted.org/packages/source/a/async_generator/async_generator-%{version}.tar.gz
-BuildRequires:  %{python_module devel}
+BuildRequires:  %{python_module devel >= 3.5}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
+%ifpython3
+Requires:       python3-base >= 3.5
+%endif
 BuildArch:      noarch
 
 %python_subpackages