diff --git a/requirements.txt b/requirements.txt
index ea96123..a603b78 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ pandas==0.24.2
 Pillow==6.2.0
 plac==0.9.6
 preshed==2.0.1
-protobuf==3.7.1
+protobuf==3.15.0
 python-dateutil==2.8.0
 pytz==2019.1
 requests==2.21.0