diff --git a/protobuf/schema/v1/server-service.proto b/protobuf/schema/v1/server-service.proto
index 49eed90..5fce48f 100644
--- a/protobuf/schema/v1/server-service.proto
+++ b/protobuf/schema/v1/server-service.proto
@@ -88,6 +88,8 @@ message Cache {
 message S3Cache {
   string region = 1;
   string bucket_name = 2;
+  string endpoint = 3;
+  bool insecure = 4;
 }
 
 message AzureCache {