diff --git a/src/emailservice/requirements.txt b/src/emailservice/requirements.txt
index 765dc1d..3cdc978 100644
--- a/src/emailservice/requirements.txt
+++ b/src/emailservice/requirements.txt
@@ -80,7 +80,7 @@ proto-plus==1.27.0
     # via
     #   google-api-core
     #   google-cloud-trace
-protobuf==6.33.2
+protobuf==6.33.5
     # via
     #   google-api-core
     #   google-cloud-trace