diff --git a/requirements.txt b/requirements.txt
index 44fb99c..3ada56f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -111,7 +111,7 @@ pickleshare==0.7.4
 Pillow==4.1.1
 ply==3.10
 prompt-toolkit==1.0.14
-protobuf==3.4.0
+protobuf==3.18.3
 psutil==5.2.2
 psycopg2==2.7.3.1
 ptyprocess==0.5.1