diff --git a/pyproject.toml b/pyproject.toml
index 3b29282..bf2cc68 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,6 +17,7 @@ classifiers = [
     "Framework :: Jupyter",
     "Intended Audience :: Developers",
     "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: BSD License",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",