diff --git a/requirements.txt b/requirements.txt
index bdd893c..9656147 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ MarkupSafe==2.0.1
 mypy-extensions==0.4.3
 packaging==21.3
 proto-plus==1.19.8
-protobuf==3.19.1
+protobuf==6.33.5
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyparsing==3.0.6