diff --git a/requirements.txt b/requirements.txt
index c764351..b5ea48b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -81,7 +81,7 @@ Pillow==7.0.0
 progressbar2==3.50.0
 prometheus-client==0.7.1
 prompt-toolkit==3.0.5
-protobuf==3.11.4
+protobuf==3.18.3
 prov==1.5.3
 ptyprocess==0.6.0
 pyasn1==0.4.8