diff --git a/setup.py b/setup.py
index aaae281..f04d804 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@ setuptools.setup(
     ],
 
     classifiers=[
-        "Development Status :: 3 :: Alpha",
+        "Development Status :: 3 - Alpha",
         "License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)",
         "Topic :: Communications :: Chat",
         "Framework :: AsyncIO",