diff --git a/requirements.txt b/requirements.txt
index 30a095f..fc7226e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ matplotlib==3.2.1
 mock==4.0.2
 numpy==1.16.3
 pandas==1.0.3
-protobuf==3.11.3
+protobuf==3.15.0
 pyparsing==2.4.7
 python-dateutil==2.8.1
 pytz==2020.1