diff --git a/requirements.txt b/requirements.txt
index ef43047..b54b264 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ nose==1.3.7
 numpy==1.19.4
 pandas==1.1.4
 Pillow==8.0.1
-protobuf==3.14.0
+protobuf==3.15.0
 pyparsing==2.4.7
 python-dateutil==2.8.1
 pytz==2020.4