diff --git a/requirements.txt b/requirements.txt
index 7600335..6e8c19a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,5 +3,5 @@ pandas_gbq==0.13.2
 tzlocal==2.1
 pandas==1.0.3
 requests==2.23.0
-protobuf==3.13.0
+protobuf==3.18.3
 python_dateutil==2.8.1