diff --git a/requirements.txt b/requirements.txt
index 4d63a57..e527eef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -58,7 +58,7 @@ pickleshare==0.7.5
 Pillow==7.1.1
 prometheus-client==0.7.1
 prompt-toolkit==3.0.5
-protobuf==3.11.3
+protobuf==3.18.3
 ptyprocess==0.6.0
 Pygments==2.6.1
 pyparsing==2.4.7