diff --git a/setup.py b/setup.py
index 0e55d2e..1ec67f1 100644
--- a/setup.py
+++ b/setup.py
@@ -221,7 +221,7 @@ setup(
     download_url='https://github.com/haata/pycapnp/archive/v%s.zip' % VERSION,
     keywords=['capnp', 'capnproto', "Cap'n Proto", 'pycapnp'],
     classifiers=[
-        'Development Status :: 4 - Beta',
+        'Development Status :: 5 - Production/Stable',
         'Intended Audience :: Developers',
         'License :: OSI Approved :: BSD License',
         'Operating System :: MacOS :: MacOS X',