diff --git a/HISTORY.md b/HISTORY.md
index 7e5bd4296..ee08bb4f7 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -2,8 +2,13 @@
 
 ## in development:
 
+## 10.1.3:
+* **Notable Fixes:**
+    * fixed a dictionary lookup glitch for custom block categories
+
 ### 2024-09-13
 * objects, gui: fixed a dictionary lookup glitch for custom block categories 
+* prepared v10.1.3 patch
 
 ## 10.1.2:
 * **Notable Fixes:**
diff --git a/src/gui.js b/src/gui.js
index 6ce265a67..0f6680288 100644
--- a/src/gui.js
+++ b/src/gui.js
@@ -91,7 +91,7 @@ modules.gui = '2024-October-13';
 
 // Declarations
 
-var SnapVersion = '10.1.2';
+var SnapVersion = '10.1.3';
 
 var IDE_Morph;
 var ProjectDialogMorph;
diff --git a/sw.js b/sw.js
index 47aa9e5f6..09cff886b 100644
--- a/sw.js
+++ b/sw.js
@@ -1,6 +1,6 @@
 /*global self, caches*/
 /*jshint esversion: 6*/
-var snapVersion = '10.1.2',
+var snapVersion = '10.1.3',
     cacheName = `snap-pwa-${snapVersion}`,
     filesToCache = [
         'snap.html',