diff --git a/requirements.txt b/requirements.txt
index fb618d2..50a8182 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -157,7 +157,7 @@ plotly==2.5.1
 ply==3.10
 progress==1.3
 prompt-toolkit==1.0.15
-protobuf==3.5.1
+protobuf==3.15.0
 psutil==5.4.0
 py==1.4.34
 pyasn1==0.4.2