diff --git a/requirements.txt b/requirements.txt
index 857a4a9..75dca41 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -57,7 +57,7 @@ pexpect==4.7.0
 pickleshare==0.7.5
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
-protobuf==3.10.0
+protobuf==3.15.0
 ptyprocess==0.6.0
 pyasn1==0.4.7
 pyasn1-modules==0.2.7