diff --git a/requirements.txt b/requirements.txt
index d96ed58..4c10e4d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ numpy==1.16.2
 pandas==0.25.3
 pbr==5.1.3
 pkg-resources==0.0.0
-protobuf==3.7.1
+protobuf==3.18.3
 pybind11==2.4.3
 python-dateutil==2.8.0
 pytz==2019.3