diff --git a/requirements.txt b/requirements.txt
index 241526f..ffeddbb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ mock==2.0.0
 numpy==1.16.2
 pandas==0.24.2
 pbr==5.1.3
-protobuf==3.7.1
+protobuf==3.18.3
 pylint==2.3.1
 pyparsing==2.3.1
 python-dateutil==2.8.0