diff --git a/requirements.txt b/requirements.txt
index 65212cf..8963a8c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ numpy==1.17.3
 opencv-python==4.1.1.26
 Pillow==6.2.1
 pluginlib==1.11.3
-protobuf==3.10.0
+protobuf==3.18.3
 pyaml==19.4.1
 pyparsing==2.4.2
 python-dateutil==2.8.1