diff --git a/Classes/Wrapper/SwiperContainer.php b/Classes/Wrapper/SwiperContainer.php
index 89206261..bea72f5a 100644
--- a/Classes/Wrapper/SwiperContainer.php
+++ b/Classes/Wrapper/SwiperContainer.php
@@ -36,7 +36,7 @@ public function getProcessedData(array $processedData, array $flexconf): array
         $processedData['breakpoints10'] = !empty($flexconf['breakpoints10']) ? (int)$flexconf['breakpoints10'] : 1;
         $processedData['breakpoints576'] = !empty($flexconf['breakpoints576']) ? (int)$flexconf['breakpoints576'] : 2;
         $processedData['breakpoints768'] = !empty($flexconf['breakpoints768']) ? (int)$flexconf['breakpoints768'] : 3;
-        $processedData['breakpoints992'] = !empty($flexconf['breakpoints992']) ? int)$flexconf['breakpoints992'] : 4;
+        $processedData['breakpoints992'] = !empty($flexconf['breakpoints992']) ? (int)$flexconf['breakpoints992'] : 4;
         $processedData['slidesPerGroup'] = !empty($flexconf['slidesPerGroup']) ? (int)$flexconf['slidesPerGroup'] : 1;
         $processedData['spaceBetween'] = !empty($flexconf['spaceBetween']) ? (int)$flexconf['spaceBetween'] : 0;
         $processedData['loop'] = !empty($flexconf['loop']) ? 1 : 0;
diff --git a/composer.json b/composer.json
index c1502823..08103ad6 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
   "type": "typo3-cms-extension",
   "require": {
     "php": "^8.1 || ^8.2 || ^8.3",
-    "typo3/cms-core": "^12.4.12 || ^13.4",
+    "typo3/cms-core": "^12.4 || ^13.4",
     "b13/container": "^3.1",
     "ichhabrecht/content-defender": "^3.4"
   },
diff --git a/ext_emconf.php b/ext_emconf.php
index 9e9465dc..93f69a47 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -14,7 +14,7 @@
     'title' => 'Bootstrap Components',
     'description' => 'Startup extension to use bootstrap 5 classes, components and more out of the box. Example and info: www.t3sbootstrap.de',
     'category' => 'templates',
-    'version' => '5.3.19',
+    'version' => '5.3.20',
     'state' => 'stable',
     'author' => 'Helmut Hackbarth',
     'author_email' => 'typo3@t3solution.de',
@@ -24,7 +24,7 @@
         'depends' =>
         [
             'php' => '8.2.0-8.3.99',
-            'typo3' => '12.4.12-13.9.99',
+            'typo3' => '12.4.2-13.9.99',
             'container' => '3.1.0-3.99.99',
             'content_defender' => '3.4.2-3.99.99'
         ],