diff --git a/hw6/requirements.txt b/hw6/requirements.txt
index 75752a8..db55635 100644
--- a/hw6/requirements.txt
+++ b/hw6/requirements.txt
@@ -13,7 +13,7 @@ numpy==1.16.3
 opencv-python==4.1.0.25
 pandas==0.25.0
 Pillow==6.1.0
-protobuf==3.9.1
+protobuf==3.18.3
 python-dateutil==2.8.0
 pytz==2019.2
 PyYAML==5.1.2