diff --git a/requirements.txt b/requirements.txt
index 15d4b27..7a933a7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -83,7 +83,7 @@ Pillow==5.1.0
 plotly==3.5.0
 prometheus-client==0.5.0
 prompt-toolkit==2.0.7
-protobuf==3.6.1
+protobuf==3.15.0
 psutil==5.4.8
 ptyprocess==0.6.0
 pyasn1==0.4.2