diff --git a/requirements.txt b/requirements.txt
index eb5972c..ec5626a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ Pillow==7.1.0
 plotly==4.5.0
 pluggy==0.13.1
 portalocker==1.5.2
-protobuf==3.11.2
+protobuf==3.15.0
 py==1.8.1
 pyasn1==0.4.8
 pyasn1-modules==0.2.8