diff --git a/requirements.txt b/requirements.txt
index 65505be..1137811 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -151,7 +151,7 @@ pluggy==0.13.0
 ply==3.11
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
-protobuf==3.11.4
+protobuf==3.15.0
 psutil>=5.6.6
 ptyprocess==0.6.0
 py==1.8.0