diff --git a/requirements.txt b/requirements.txt
index bccbb59..b242f9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ idna==2.8
 numpy==1.17.4
 pandas==0.25.3
 plotly==4.4.1
-protobuf==3.11.1
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.7
 python-dateutil==2.8.1