diff --git a/requirements.txt b/requirements.txt
index db18b5a..145e122 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -152,7 +152,7 @@ ply==3.11
 prettytable==0.7.2
 prometheus-client==0.7.1
 prompt-toolkit==3.0.3
-protobuf==3.12.0
+protobuf==3.15.0
 psutil==5.6.7
 ptyprocess==0.6.0
 py==1.8.1