diff --git a/setup.py b/setup.py
index 2391d3bb7f1c405f0518c84c809d999e5ac2ff80..6f47af695545868600705503f1a093d12d54ea9d 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@ setup(
         ]
     },
     classifiers=[
-        "License :: MIT License",
+        "License :: OSI Approved :: MIT License",
         "Programming Language :: Python :: 3",
         "Development Status :: 3 - Alpha",
         "Intended Audience :: Education",