diff --git a/requirements.txt b/requirements.txt
index 51bf8d2..f45ba8c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -79,7 +79,7 @@ Pillow==8.1.1
 pluggy==0.13.0
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
-protobuf==3.10.0
+protobuf==3.15.0
 protobuf3-to-dict==0.1.5
 ptyprocess==0.6.0
 py==1.10.0