diff --git a/requirements.txt b/requirements.txt
index d298593..a81896c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,7 +72,7 @@ pickleshare==0.7.5
 pluggy==0.13.1
 prometheus-client==0.7.1
 prompt-toolkit==2.0.9
-protobuf==3.10.0
+protobuf==3.15.0
 ptyprocess==0.6.0
 py==1.8.0
 pyasn1==0.4.7