diff --git a/requirements.txt b/requirements.txt
index 410463e..cfbdb87 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ matplotlib==3.0.3
 numpy==1.16.2
 pandas==0.24.1
 Pillow==6.2.0
-protobuf==3.7.0
+protobuf==3.15.0
 pyparsing==2.3.1
 python-dateutil==2.8.0
 pytz==2018.9