diff --git a/requirements.txt b/requirements.txt
index dd442b4..41a2a07 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ opentelemetry-semantic-conventions==0.23b2
 opentelemetry-util-http==0.23b2
 prometheus-client==0.11.0
 prometheus-flask-exporter==0.18.2
-protobuf==3.17.3
+protobuf==3.18.3
 python-dateutil==2.8.2
 requests==2.26.0
 s3transfer==0.5.0