diff --git a/pyproject.toml b/pyproject.toml
index 30d69b4..fed5599 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,6 +11,7 @@ license = { text = "MIT" }
 classifiers = [
   "Operating System :: OS Independent",
   "License :: OSI Approved :: MIT License",
+  "Typing :: Typed",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3.9",