diff --git a/google/cloud/orchestration/airflow/service/v1/environments.proto b/google/cloud/orchestration/airflow/service/v1/environments.proto
index d27cb6be08..cb1303aa1c 100644
--- a/google/cloud/orchestration/airflow/service/v1/environments.proto
+++ b/google/cloud/orchestration/airflow/service/v1/environments.proto
@@ -125,7 +125,7 @@ service Environments {
   // runs a single Composer component.
   //
   // This method is supported for Cloud Composer environments in versions
-  // composer-3.*.*-airflow-*.*.* and newer.
+  // composer-2.*.*-airflow-*.*.* and newer.
   rpc ListWorkloads(ListWorkloadsRequest) returns (ListWorkloadsResponse) {
     option (google.api.http) = {
       get: "/v1/{parent=projects/*/locations/*/environments/*}/workloads"