diff --git a/requirements/test.txt b/requirements/test.txt
index 6d9d17b98..9b7e0c021 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -3,6 +3,7 @@ lmdb
 onnx==1.7.0; python_version < '3.10'
 onnxoptimizer; python_version < '3.10'
 onnxruntime>=1.8.0; python_version < '3.10'
+protobuf~=3.19.0
 pytest
 PyTurboJPEG
 scipy