diff --git a/HISTORY.md b/HISTORY.md
index b5f558844..f7fe3244e 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -2,9 +2,15 @@
 
 ## in development:
 
+## 10.4.6:
+* **Notable Changes:**
+    * SciSnap update, thanks, Eckart!
+    * reduced blocks outline contrast in flat design mode
+
 ### 2025-02-05
 * gui: reduced blocks outline contrast in flat design mode
 * SciSnap update, thanks, Eckart!
+* prepared v10.4.6 patch 
 
 ## 10.4.5:
 * **Notable Fixes:**
diff --git a/src/gui.js b/src/gui.js
index 55f0c3d3f..9921f9c10 100644
--- a/src/gui.js
+++ b/src/gui.js
@@ -91,7 +91,7 @@ modules.gui = '2025-February-05';
 
 // Declarations
 
-var SnapVersion = '10.4.5';
+var SnapVersion = '10.4.6';
 
 var IDE_Morph;
 var ProjectDialogMorph;
diff --git a/sw.js b/sw.js
index 2750833e5..0fc8c2694 100644
--- a/sw.js
+++ b/sw.js
@@ -1,6 +1,6 @@
 /*global self, caches*/
 /*jshint esversion: 6*/
-var snapVersion = '10.4.5',
+var snapVersion = '10.4.6',
     cacheName = `snap-pwa-${snapVersion}`,
     filesToCache = [
         'snap.html',