diff --git a/requirements.txt b/requirements.txt
index 196a96aa..8ec4e7d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ matplotlib==3.4.1
 multi-model-server==1.1.2
 numpy==1.19.2
 pandas==1.2.4
-protobuf==3.20.1
+protobuf==3.20.2
 psutil==5.6.7  # sagemaker-containers requires psutil 5.6.7
 pynvml==11.4.1
 python-dateutil==2.8.1