diff --git a/pyproject.toml b/pyproject.toml
index c2fe19e..60a923c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,6 +10,7 @@ readme = "README.md"
 authors = [ { name = "Nathan McDougall", email = "nathan.j.mcdougall@gmail.com" } ]
 requires-python = ">=3.10"
 classifiers = [
+  "License :: OSI Approved :: MIT License",
   "Programming Language :: Python :: 3 :: Only",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",