diff --git a/requirements.txt b/requirements.txt
index edc1797..2454212 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -63,7 +63,7 @@ pickleshare==0.7.5
 portpicker==1.2.0
 prometheus-client==0.7.1
 prompt-toolkit==1.0.18
-protobuf==3.10.0
+protobuf==3.15.0
 ptyprocess==0.6.0
 pyasn1==0.4.7
 pyasn1-modules==0.2.7