diff --git a/requirements.txt b/requirements.txt
index 8d73062..db2abf4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -129,7 +129,7 @@ pluggy==0.6.0
 ply==3.11
 prometheus-client==0.5.0
 prompt-toolkit==1.0.15
-protobuf==3.6.1
+protobuf==3.15.0
 psutil==5.4.5
 py==1.5.3
 pybind11==2.2.4