diff --git a/requirements.txt b/requirements.txt
index 4c7e5be..8a8f5fc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ pandas==0.24.2
 pep8==1.7.1
 pkg-resources==0.0.0
 pluggy==0.12.0
-protobuf==3.7.1
+protobuf==3.15.0
 py==1.8.0
 pycodestyle==2.5.0
 pylint==2.3.1