diff --git a/server/python/requirements.txt b/server/python/requirements.txt
index 1ce4d06..2bd1c78 100644
--- a/server/python/requirements.txt
+++ b/server/python/requirements.txt
@@ -15,7 +15,7 @@ Jinja2==2.11.3
 MarkupSafe==1.1.1
 packaging==20.9
 proto-plus==1.18.1
-protobuf==3.15.8
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyparsing==2.4.7