diff --git a/system/extensions/update-available.ini b/system/extensions/update-available.ini
index 272e0991..be1cd2a6 100644
--- a/system/extensions/update-available.ini
+++ b/system/extensions/update-available.ini
@@ -148,14 +148,14 @@ system/themes/copenhagen.css: copenhagen.css, create, update, careful
 system/themes/copenhagen.png: copenhagen.png, create
 
 Extension: Core
-Version: 0.9.5
+Version: 0.9.6
 Description: Core functionality of your website.
 Developer: Anna Svensson
 Tag: feature
 DownloadUrl: https://github.com/annaesvensson/yellow-core/archive/refs/heads/main.zip
 DocumentationUrl: https://github.com/annaesvensson/yellow-core
 DocumentationLanguage: en, de, sv
-Published: 2024-04-23 10:16:44
+Published: 2024-04-23 21:35:24
 Status: available
 system/workers/core.php: core.php, create, update
 system/extensions/core.php: coreupdate.txt, update
@@ -602,14 +602,14 @@ Status: available
 system/workers/private.php: private.php, create, update
 
 Extension: Publish
-Version: 0.9.3
+Version: 0.9.4
 Description: Make and publish extensions.
 Developer: Anna Svensson
 Tag: feature
 DownloadUrl: https://github.com/annaesvensson/yellow-publish/archive/refs/heads/main.zip
 DocumentationUrl: https://github.com/annaesvensson/yellow-publish
 DocumentationLanguage: en, de, sv
-Published: 2024-04-10 10:20:07
+Published: 2024-04-23 22:01:41
 Status: available
 system/workers/publish.php: publish.php, create, update
 
diff --git a/system/extensions/yellow-extension.ini b/system/extensions/yellow-extension.ini
index 8972569c..9428edef 100755
--- a/system/extensions/yellow-extension.ini
+++ b/system/extensions/yellow-extension.ini
@@ -1,14 +1,14 @@
 # Datenstrom Yellow extension settings
 
 Extension: Core
-Version: 0.9.5
+Version: 0.9.6
 Description: Core functionality of your website.
 Developer: Anna Svensson
 Tag: feature
 DownloadUrl: https://github.com/annaesvensson/yellow-core/archive/refs/heads/main.zip
 DocumentationUrl: https://github.com/annaesvensson/yellow-core
 DocumentationLanguage: en, de, sv
-Published: 2024-04-23 10:16:44
+Published: 2024-04-23 21:35:24
 Status: available
 system/workers/core.php: core.php, create, update
 system/extensions/core.php: coreupdate.txt, update
diff --git a/system/workers/core.php b/system/workers/core.php
index d13c85c0..9c1fe2b6 100755
--- a/system/workers/core.php
+++ b/system/workers/core.php
@@ -2,7 +2,7 @@
 // Core extension, https://github.com/annaesvensson/yellow-core
 
 class YellowCore {
-    const VERSION = "0.9.5";
+    const VERSION = "0.9.6";
     const RELEASE = "0.9";
     public $content;        // content files
     public $media;          // media files
@@ -3656,14 +3656,14 @@ public function similar($page): YellowPageCollection {
     public function sort($key, $ascendingOrder = true): YellowPageCollection {
         $array = $this->getArrayCopy();
         $sortIndex = 0;
+        $sortKeys = array();
         foreach ($array as $page) {
-            $page->set("sortIndex", ++$sortIndex);
+            $sortKeys[$page->location] = $page->get($key)." ".++$sortIndex;
         }
-        $callback = function ($a, $b) use ($key, $ascendingOrder) {
-            $result = $ascendingOrder ?
-                strnatcasecmp($a->get($key), $b->get($key)) :
-                strnatcasecmp($b->get($key), $a->get($key));
-            return $result==0 ? $a->get("sortIndex") - $b->get("sortIndex") : $result;
+        $callback = function ($a, $b) use ($sortKeys, $ascendingOrder) {
+            return $ascendingOrder ?
+                strnatcasecmp($sortKeys[$a->location], $sortKeys[$b->location]) :
+                strnatcasecmp($sortKeys[$b->location], $sortKeys[$a->location]);
         };
         usort($array, $callback);
         $this->exchangeArray($array);