diff --git a/openapi/openapiv2.json b/openapi/openapiv2.json
index b34d7c7fe..4e83aaf24 100644
--- a/openapi/openapiv2.json
+++ b/openapi/openapiv2.json
@@ -16289,7 +16289,7 @@
       "properties": {
         "deploymentName": {
           "type": "string",
-          "description": "Required. Worker Deployment name."
+          "description": "Required when `worker_versioning_mode==VERSIONED`."
         },
         "buildId": {
           "type": "string",
diff --git a/openapi/openapiv3.yaml b/openapi/openapiv3.yaml
index 9ee818520..84115cc6b 100644
--- a/openapi/openapiv3.yaml
+++ b/openapi/openapiv3.yaml
@@ -14796,7 +14796,7 @@ components:
       properties:
         deploymentName:
           type: string
-          description: Required. Worker Deployment name.
+          description: Required when `worker_versioning_mode==VERSIONED`.
         buildId:
           type: string
           description: |-
diff --git a/temporal/api/deployment/v1/message.proto b/temporal/api/deployment/v1/message.proto
index 3973f0afb..b4b7883dd 100644
--- a/temporal/api/deployment/v1/message.proto
+++ b/temporal/api/deployment/v1/message.proto
@@ -18,7 +18,7 @@ import "temporal/api/common/v1/message.proto";
 // Worker Deployment options set in SDK that need to be sent to server in every poll.
 // Experimental. Worker Deployments are experimental and might significantly change in the future.
 message WorkerDeploymentOptions {
-    // Required. Worker Deployment name.
+    // Required when `worker_versioning_mode==VERSIONED`.
     string deployment_name = 1;
     // The Build ID of the worker. Required when `worker_versioning_mode==VERSIONED`, in which case,
     // the worker will be part of a Deployment Version.