diff --git a/requirements.txt b/requirements.txt
index 6b218768..e8601435 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ openpyxl
 # paddlepaddle-gpu >= 2.2.0
 paddleslim >= 2.2.1, < 2.3.5
 pandas
-protobuf >= 3.1.0, <= 3.20.3
+protobuf >= 3.1.0, <= 4.23.4
 pycocotools
 # pydensecrf
 scikit-learn