diff --git a/requirements.txt b/requirements.txt
index 1adb7e2..ef8d91e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-protobuf==3.20.1
+protobuf==3.20.0
 numpy==1.24.3
 opencv-python==4.7.0.72
 onnx==1.14.0