diff --git a/requirements.txt b/requirements.txt
index e1d1c3d..a8abb37 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -162,7 +162,7 @@ pluggy==0.8.0
 ply==3.11
 prometheus-client==0.4.2
 prompt-toolkit==2.0.7
-protobuf==3.6.1
+protobuf==3.15.0
 psutil==5.4.8
 py==1.7.0
 py4j==0.10.7