diff --git a/examples/data_types_and_io/requirements.in b/examples/data_types_and_io/requirements.in
index 2bcce8b12..b2026eec6 100644
--- a/examples/data_types_and_io/requirements.in
+++ b/examples/data_types_and_io/requirements.in
@@ -3,3 +3,4 @@ torch
 tabulate
 tensorflow
 pyarrow
+pydantic