diff --git a/requirements.txt b/requirements.txt
index ad881fc..ffaa18c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ mlflow==1.0.0
 networkx==2.3
 numpy==1.16.4
 pandas==0.24.2
-protobuf==3.9.0
+protobuf==3.15.0
 pymongo==3.8.0
 python-dateutil==2.8.0
 python-editor==1.0.4