diff --git a/requirements.txt b/requirements.txt
index fa28f4a..5c1e113 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -77,7 +77,7 @@ pickleshare==0.7.5
 Pillow==6.2.0
 prometheus-client==0.6.0
 prompt-toolkit==2.0.9
-protobuf==3.7.1
+protobuf==3.15.0
 psutil==5.6.6
 ptyprocess==0.6.0
 pyasn1==0.4.5