diff --git a/requirements.txt b/requirements.txt
index ff6952b..6d97587 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -62,7 +62,7 @@ Pillow==7.2.0
 prometheus-client==0.7.1
 promise==2.3
 prompt-toolkit==3.0.5
-protobuf==3.12.0
+protobuf==3.15.0
 psutil==5.7.0
 ptyprocess==0.6.0
 pyasn1==0.4.8