diff --git a/composer.json b/composer.json
index 8076288..b4469b3 100644
--- a/composer.json
+++ b/composer.json
@@ -3,10 +3,13 @@
 	"type": "typo3-cms-extension",
 	"description": "Forces a slash on URLs by redirecting.",
 	"require": {
-		"typo3/cms-core": "^11.5 || ^12.4 || ^13.4"
+		"typo3/cms-core": "^11.5 || ^12.4 || ^13.4 || ^14.3"
 	},
 	"extra": {
 		"typo3/cms": {
+			"Package": {
+				"providesPackages": {}
+			},
 			"extension-key": "slash_force"
 		}
 	},
diff --git a/ext_emconf.php b/ext_emconf.php
index 9490473..3f015a4 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -11,7 +11,7 @@
     'version' => '1.1.1',
     'constraints' => [
         'depends' => [
-            'typo3' => '11.5.0-13.4.99',
+            'typo3' => '11.5.0-14.3.99',
         ],
         'conflicts' => [],
         'suggests' => [],