diff --git a/requirements.txt b/requirements.txt
index 72cc6ac..704af9d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ numpy
 opencv-python
 pandas
 Pillow
-protobuf==3.10.0
+protobuf==3.15.0
 pycocotools
 PyYAML
 regex==2019.8.19