diff --git a/HISTORY.md b/HISTORY.md
index 3cbf37bd..84dc734a 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -13,11 +13,15 @@
     * deleting project notes in the "save" dialog now also deletes them in the saved project
     * items in list-boxes such as the project list are no longer auto-translated
     * fixed a redo issue
+    * fixed a rare race condition when loading projects
 * **Translation Updates:**
     * Catalan, thanks, Joan!
     * Norwegian, thanks, Olav!
     * German
 
+### 2020-09-18
+* objects: Fixed costume thumbnail for asynch loading, thanks, Bernat!
+
 ### 2020-09-14
 * blocks: fixed "redrop" (redo)
 * byob: consolidated custon block definition update counter, thanks, Brian B.!
diff --git a/snap.html b/snap.html
index 71aa20fa..3d2a4463 100755
--- a/snap.html
+++ b/snap.html
@@ -10,7 +10,7 @@
         <script src="src/widgets.js?version=2020-07-27"></script>
         <script src="src/blocks.js?version=2020-09-14"></script>
         <script src="src/threads.js?version=2020-09-02"></script>
-        <script src="src/objects.js?version=2020-09-04"></script>
+        <script src="src/objects.js?version=2020-09-18"></script>
         <script src="src/gui.js?version=2020-09-07"></script>
         <script src="src/paint.js?version=2020-05-17"></script>
         <script src="src/lists.js?version=2020-07-01"></script>
diff --git a/src/objects.js b/src/objects.js
index 208bc5b0..d6461361 100644
--- a/src/objects.js
+++ b/src/objects.js
@@ -84,7 +84,7 @@ BlockEditorMorph, BlockDialogMorph, PrototypeHatBlockMorph,  BooleanSlotMorph,
 localize, TableMorph, TableFrameMorph, normalizeCanvas, VectorPaintEditorMorph,
 HandleMorph, AlignmentMorph, Process, XML_Element, WorldMap, copyCanvas*/
 
-modules.objects = '2020-September-04';
+modules.objects = '2020-September-18';
 
 var SpriteMorph;
 var StageMorph;