diff --git a/protobuf/schema/v1/schema.proto b/protobuf/schema/v1/schema.proto
index 503af2c..792ed79 100644
--- a/protobuf/schema/v1/schema.proto
+++ b/protobuf/schema/v1/schema.proto
@@ -79,6 +79,7 @@ message Cache {
   string bucket_name = 2;
   string storage_account = 3;
   string container_name = 4;
+  string project_id = 5;
 }
 
 message Trivy {