diff --git a/requirements.txt b/requirements.txt
index c9ee365..e5d076f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ matplotlib==3.1.0
 numpy==1.16.4
 opencv-python==4.1.0.25
 pandas==0.24.2
-protobuf==3.8.0
+protobuf==3.15.0
 pyparsing==2.4.0
 python-dateutil==2.8.0
 pytz==2019.1