diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a31f35bc..925403a91 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 1.4.1
+
+### Bug Fixes:
+ * add queue lock for refresh-checkpoints
+
 ## 1.4.0
 
 ### Features:
diff --git a/modules/api/api.py b/modules/api/api.py
index 5793bb440..1804a383a 100644
--- a/modules/api/api.py
+++ b/modules/api/api.py
@@ -598,7 +598,8 @@ class Api:
         }
 
     def refresh_checkpoints(self):
-        shared.refresh_checkpoints()
+        with self.queue_lock:
+            shared.refresh_checkpoints()
 
     def create_embedding(self, args: dict):
         try: