1 files changed, 2 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index 4a435a4..d1f4e44 100644
--- a/setup.py
+++ b/setup.py
@@ -43,5 +43,7 @@ setup(
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: Implementation :: CPython',
+        'Programming Language :: Python :: Implementation :: PyPy',
     ]
 )