diff --git a/requirements.txt b/requirements.txt
index 6bebed6..6193acc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -123,7 +123,7 @@ pomegranate==0.9.0
 prettytable==0.7.2
 prometheus-client==0.3.1
 prompt-toolkit==1.0.15
-protobuf==3.5.1
+protobuf==3.15.0
 psutil==5.4.0
 psycopg2==2.7.4
 ptyprocess==0.5.2