diff --git a/obsws_python/reqs.py b/obsws_python/reqs.py
index f823431..9650e95 100644
--- a/obsws_python/reqs.py
+++ b/obsws_python/reqs.py
@@ -1494,7 +1494,7 @@ class ReqClient:
         payload = {
             "sceneName": scene_name,
             "sceneItemId": item_id,
-            "sceneItemLocked": item_index,
+            "sceneItemIndex": item_index,
         }
         self.send("SetSceneItemIndex", payload)
 
diff --git a/obsws_python/version.py b/obsws_python/version.py
index d619c75..6abaa20 100644
--- a/obsws_python/version.py
+++ b/obsws_python/version.py
@@ -1 +1 @@
-version = "1.4.0"
+version = "1.4.1"