diff --git a/requirements.txt b/requirements.txt
index f334ef9..e232ffc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ numpy==1.18.2
 nvidia-ml-py3==7.352.0
 opt-einsum==3.2.0
 pandas==1.0.3
-protobuf==3.11.3
+protobuf==3.18.3
 pyrsistent==0.16.0
 python-dateutil==2.8.1
 pytz==2019.3