diff --git a/examples/frameworks/pytorch/requirements.txt b/examples/frameworks/pytorch/requirements.txt
index 674d38c7..e74fea99 100644
--- a/examples/frameworks/pytorch/requirements.txt
+++ b/examples/frameworks/pytorch/requirements.txt
@@ -7,3 +7,4 @@ tensorboardX
 torch>=1.1.0
 torchvision>=0.3.0
 tqdm
+protobuf>=4.21.1