diff --git a/pyproject.toml b/pyproject.toml
index 0b598099f..a8820f5aa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,6 +15,7 @@ description = "Classes Without Boilerplate"
 keywords = ["class", "attribute", "boilerplate"]
 classifiers = [
   "Development Status :: 5 - Production/Stable",
+  "License :: OSI Approved :: MIT License",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",