diff --git a/slack-api-client/src/main/java/com/slack/api/methods/RequestFormBuilder.java b/slack-api-client/src/main/java/com/slack/api/methods/RequestFormBuilder.java
index 83cd09697..f088565df 100644
--- a/slack-api-client/src/main/java/com/slack/api/methods/RequestFormBuilder.java
+++ b/slack-api-client/src/main/java/com/slack/api/methods/RequestFormBuilder.java
@@ -1174,6 +1174,9 @@ public static FormBody.Builder toForm(AssistantThreadsSetStatusRequest req) {
         if (req.getLoadingMessages() != null) {
             setIfNotNull("loading_messages", req.getLoadingMessages().stream().collect(joining(",")), form);
         }
+        setIfNotNull("icon_emoji", req.getIconEmoji(), form);
+        setIfNotNull("icon_url", req.getIconUrl(), form);
+        setIfNotNull("username", req.getUsername(), form);
         return form;
     }
 
@@ -1708,6 +1711,9 @@ public static FormBody.Builder toForm(ChatStartStreamRequest req) {
         setIfNotNull("markdown_text", req.getMarkdownText(), form);
         setIfNotNull("recipient_user_id", req.getRecipientUserId(), form);
         setIfNotNull("recipient_team_id", req.getRecipientTeamId(), form);
+        setIfNotNull("icon_emoji", req.getIconEmoji(), form);
+        setIfNotNull("icon_url", req.getIconUrl(), form);
+        setIfNotNull("username", req.getUsername(), form);
         return form;
     }
 
diff --git a/slack-api-client/src/main/java/com/slack/api/methods/request/assistant/threads/AssistantThreadsSetStatusRequest.java b/slack-api-client/src/main/java/com/slack/api/methods/request/assistant/threads/AssistantThreadsSetStatusRequest.java
index 95256617f..32ea12efd 100644
--- a/slack-api-client/src/main/java/com/slack/api/methods/request/assistant/threads/AssistantThreadsSetStatusRequest.java
+++ b/slack-api-client/src/main/java/com/slack/api/methods/request/assistant/threads/AssistantThreadsSetStatusRequest.java
@@ -34,4 +34,19 @@ public class AssistantThreadsSetStatusRequest implements SlackApiRequest {
      * The list of messages to rotate through as a loading indicator.
      */
     private List<String> loadingMessages;
+
+    /**
+     * Emoji to use as the icon for this message. Overrides icon_url.
+     */
+    private String iconEmoji;
+
+    /**
+     * Image URL to use as the icon for this message.
+     */
+    private String iconUrl;
+
+    /**
+     * The bot's username to display.
+     */
+    private String username;
 }
diff --git a/slack-api-client/src/main/java/com/slack/api/methods/request/chat/ChatStartStreamRequest.java b/slack-api-client/src/main/java/com/slack/api/methods/request/chat/ChatStartStreamRequest.java
index e3ba21182..6bb6ddfe5 100644
--- a/slack-api-client/src/main/java/com/slack/api/methods/request/chat/ChatStartStreamRequest.java
+++ b/slack-api-client/src/main/java/com/slack/api/methods/request/chat/ChatStartStreamRequest.java
@@ -40,4 +40,19 @@ public class ChatStartStreamRequest implements SlackApiRequest {
      * The encoded ID of the team the user receiving the streaming text belongs to. Required when streaming to channels.
      */
     private String recipientTeamId;
+
+    /**
+     * Emoji to use as the icon for this message. Overrides icon_url.
+     */
+    private String iconEmoji;
+
+    /**
+     * Image URL to use as the icon for this message.
+     */
+    private String iconUrl;
+
+    /**
+     * The bot's username to display.
+     */
+    private String username;
 }