diff --git a/requirements.txt b/requirements.txt
index aa9f189..17a7809 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ mccabe==0.6.1
 more-itertools==8.0.2
 numpy==1.16.4
 pandas==0.24.2
-protobuf==3.8.0
+protobuf==3.15.0
 pylint==2.3.1
 pyparsing==2.4.2
 python-dateutil==2.8.0