diff --git a/.ci/requirements-mypy.txt b/.ci/requirements-mypy.txt
index 86ac2e0b2..645605aa6 100644
--- a/.ci/requirements-mypy.txt
+++ b/.ci/requirements-mypy.txt
@@ -5,6 +5,7 @@ ipython
 numpy
 packaging
 pyarrow-stubs
+pybind11
 pytest
 sphinx
 types-atheris