diff --git a/requirements.txt b/requirements.txt
index 19d3b60a..5e4dfb0b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -110,7 +110,7 @@ prompt-toolkit==3.0.50
     # via click-repl
 proto-plus==1.26.1
     # via google-api-core
-protobuf==5.29.4
+protobuf==6.33.5
     # via
     #   google-api-core
     #   googleapis-common-protos