diff --git a/src/requirements.txt b/src/requirements.txt
index da72180..dea20d3 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -129,7 +129,7 @@ ply==3.10
 progressbar==2.5
 progressbar2==3.38.0
 prompt-toolkit==1.0.15
-protobuf==3.5.2
+protobuf==3.18.3
 psutil==5.4.3
 ptyprocess==0.5.2
 py==1.5.2