diff --git a/requirements.txt b/requirements.txt
index ac93525..55c3615 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ matplotlib==2.2.2
 mock==3.0.5
 numpy==1.16.3
 pandas==0.23.3
-protobuf==3.8.0
+protobuf==3.15.0
 pygame==1.9.6
 pyparsing==2.4.0
 python-dateutil==2.8.0