diff --git a/requirements.txt b/requirements.txt
index 96a6e61..78df44d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ pickleshare==0.7.5
 Pillow==8.3.2
 prometheus-client==0.8.0
 prompt-toolkit==3.0.5
-protobuf==3.6.1
+protobuf==3.18.3
 psutil==5.6.6
 ptyprocess==0.6.0
 pycairo==1.16.2