diff --git a/composer.json b/composer.json
index d0dddd3..6e76b2d 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
 		}],
 
 	"require": {
-		"typo3/cms-core": "9.1.*@dev"
+		"typo3/cms-core": "9.1.0"
 	},
 	"conflict": {
 		"typo3/cms": "*"
diff --git a/ext_emconf.php b/ext_emconf.php
index 48b2313..fd9b50b 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -13,7 +13,7 @@ $EM_CONF[$_EXTKEY] = [
     'version' => '9.1.0',
     'constraints' => [
         'depends' => [
-            'typo3' => '9.1.0-9.1.0',
+            'typo3' => '9.1.0',
         ],
         'conflicts' => [],
         'suggests' => [],