1 files changed, 5 insertions, 2 deletions
diff --git a/setup.py b/setup.py
index bf9e1a7..477219f 100644
--- a/setup.py
+++ b/setup.py
@@ -36,6 +36,7 @@ class optional_build_ext(build_ext):
     """This class subclasses build_ext and allows
        the building of C extensions to fail.
     """
+
     def run(self):
         try:
             build_ext.run(self)
@@ -103,6 +104,7 @@ setup(name='zope.proxy',
           'Programming Language :: Python :: 3.6',
           'Programming Language :: Python :: 3.7',
           'Programming Language :: Python :: 3.8',
+          'Programming Language :: Python :: 3.9',
           'Programming Language :: Python :: Implementation :: CPython',
           'Programming Language :: Python :: Implementation :: PyPy',
           'Framework :: Zope :: 3',
@@ -130,8 +132,9 @@ setup(name='zope.proxy',
               'zope.testrunner',
           ],
           'docs': [
-              'Sphinx<4', # Until repoze.sphinx.autointerface supports Sphinx 4.x we cannot use it
+              # Need < 4 until repoze.sphinx.autointerface supports Sphinx 4:
+              'Sphinx < 4',
               'repoze.sphinx.autointerface',
           ],
       },
-)
+      )