diff --git a/jetson_nano/requirements.txt b/jetson_nano/requirements.txt
index 63130fd..fc8e7e0 100644
--- a/jetson_nano/requirements.txt
+++ b/jetson_nano/requirements.txt
@@ -119,7 +119,7 @@ prettytable==0.7.2
 proglog==0.1.9
 prometheus-client==0.7.1
 prompt-toolkit==2.0.9
-protobuf==3.9.1
+protobuf==3.18.3
 psutil==5.6.3
 ptyprocess==0.6.0
 py==1.8.0