diff --git a/HISTORY.md b/HISTORY.md
index 9582b2a711..3671612766 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -2,6 +2,17 @@
 
 ## in development:
 
+## 9.1.1:
+* **Notable Fixes:**
+    * fixed using #open: to load a library from a url, thanks, Bernat!
+* **Translation Updates:**
+    * Catalan, thanks, Joan!
+
+2023-12-12
+* gui: fixed using #open: to load a library from a url, thanks, Bernat!
+* Catalan translation update, thanks, Joan!
+* prepared v9.1.1 patch
+
 ## 9.1.0:
 * **New Features:**
     * new 'text' list conversion selector, recursively joins all text and number leaf elements with spaces in between, filtering out and ignoring whitespace
diff --git a/snap.html b/snap.html
index 1131c3b906..48dd658ff5 100755
--- a/snap.html
+++ b/snap.html
@@ -20,7 +20,7 @@
         <script src="src/threads.js?version=2023-10-29"></script>
         <script src="src/objects.js?version=2023-11-30"></script>
         <script src="src/scenes.js?version=2022-10-29"></script>
-        <script src="src/gui.js?version=2023-12-05"></script>
+        <script src="src/gui.js?version=2023-12-12"></script>
         <script src="src/paint.js?version=2023-05-24"></script>
         <script src="src/lists.js?version=2023-07-24"></script>
         <script src="src/byob.js?version=2023-07-14"></script>
@@ -31,7 +31,7 @@
         <script src="src/extensions.js?version=2023-05-09"></script>
         <script src="src/xml.js?version=2021-07-05"></script>
         <script src="src/store.js?version=2023-07-27"></script>
-        <script src="src/locale.js?version=2023-12-08"></script>
+        <script src="src/locale.js?version=2023-12-12"></script>
         <script src="src/cloud.js?version=2023-04-12"></script>
         <script src="src/api.js?version=2022-11-28"></script>
         <script src="src/sha512.js?version=2019-06-27"></script>
diff --git a/src/gui.js b/src/gui.js
index 98e6e53185..ec79f15d52 100644
--- a/src/gui.js
+++ b/src/gui.js
@@ -87,11 +87,11 @@ BlockVisibilityDialogMorph, ThreadManager, isString, SnapExtensions, snapEquals
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.gui = '2023-December-05';
+modules.gui = '2023-December-12';
 
 // Declarations
 
-var SnapVersion = '9.1.0';
+var SnapVersion = '9.1.1';
 
 var IDE_Morph;
 var ProjectDialogMorph;
diff --git a/src/locale.js b/src/locale.js
index eac4294a4f..dcc348d492 100644
--- a/src/locale.js
+++ b/src/locale.js
@@ -50,7 +50,7 @@
 
 // Global stuff
 
-modules.locale = '2023-December-08';
+modules.locale = '2023-December-12';
 
 var Localizer;
 var SnapTranslator = new Localizer();
diff --git a/sw.js b/sw.js
index 6c4ff93401..d71d8726ea 100644
--- a/sw.js
+++ b/sw.js
@@ -1,4 +1,4 @@
-var snapVersion = '9.1.0',
+var snapVersion = '9.1.1',
     cacheName = `snap-pwa-${snapVersion}`,
     filesToCache = [
         'snap.html',