diff --git a/envoy/service/health/v3/hds.proto b/envoy/service/health/v3/hds.proto
index 484c0477..24fa7e9b 100644
--- a/envoy/service/health/v3/hds.proto
+++ b/envoy/service/health/v3/hds.proto
@@ -128,11 +128,9 @@ message EndpointHealthResponse {
   option (udpa.annotations.versioning).previous_message_type =
       "envoy.service.discovery.v2.EndpointHealthResponse";
 
-  // [#comment:TODO(drewsortega): add deprecate annotation once cluster_endpoints_health is implemented]
   // Deprecated - Flat list of endpoint health information.
-  repeated EndpointHealth endpoints_health = 1;
+  repeated EndpointHealth endpoints_health = 1 [deprecated = true];
 
-  // [#not-implemented-hide:]
   // Organize Endpoint health information by cluster.
   repeated ClusterEndpointsHealth cluster_endpoints_health = 2;
 }
diff --git a/envoy/service/health/v4alpha/hds.proto b/envoy/service/health/v4alpha/hds.proto
index 957f058b..a14e4c93 100644
--- a/envoy/service/health/v4alpha/hds.proto
+++ b/envoy/service/health/v4alpha/hds.proto
@@ -132,11 +132,10 @@ message EndpointHealthResponse {
   option (udpa.annotations.versioning).previous_message_type =
       "envoy.service.health.v3.EndpointHealthResponse";
 
-  // [#comment:TODO(drewsortega): add deprecate annotation once cluster_endpoints_health is implemented]
-  // Deprecated - Flat list of endpoint health information.
-  repeated EndpointHealth endpoints_health = 1;
+  reserved 1;
+
+  reserved "endpoints_health";
 
-  // [#not-implemented-hide:]
   // Organize Endpoint health information by cluster.
   repeated ClusterEndpointsHealth cluster_endpoints_health = 2;
 }