diff --git a/.github/workflows/php-test.yml b/.github/workflows/php-test.yml
index 4995233ff5..71a96dcf4b 100644
--- a/.github/workflows/php-test.yml
+++ b/.github/workflows/php-test.yml
@@ -11,8 +11,6 @@ jobs:
         php-versions: [ '8.1', '8.2', '8.3' ]
         nextcloud-versions: [ 'master', 'stable29' ]
         include:
-          - php-versions: '8.0'
-            nextcloud-versions: 'stable27'
           - php-versions: '8.1'
             nextcloud-versions: 'stable28'
     name: php${{ matrix.php-versions }} on ${{ matrix.nextcloud-versions }} unit tests
@@ -60,8 +58,6 @@ jobs:
         php-versions: [ '8.1', '8.2', '8.3' ]
         nextcloud-versions: [ 'master', 'stable29' ]
         include:
-          - php-versions: '8.0'
-            nextcloud-versions: 'stable27'
           - php-versions: '8.1'
             nextcloud-versions: 'stable28'
     name: php${{ matrix.php-versions }} on ${{ matrix.nextcloud-versions }} integration tests
diff --git a/appinfo/info.xml b/appinfo/info.xml
index c8fbad9c68..45fa4b59b6 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -20,7 +20,7 @@
 * ☑️ Tasks! See tasks with a due date directly in the calendar
 * 🙈 **We’re not reinventing the wheel!** Based on the great [c-dav library](https://github.com/nextcloud/cdav-library), [ical.js](https://github.com/mozilla-comm/ical.js) and [fullcalendar](https://github.com/fullcalendar/fullcalendar) libraries.
 	]]></description>
-	<version>4.8.0-alpha.1</version>
+	<version>5.0.0-alpha.1</version>
 	<licence>agpl</licence>
 	<author>Anna Larch</author>
 	<author homepage="https://github.com/nextcloud/groupware">Nextcloud Groupware Team</author>
@@ -39,8 +39,8 @@
 	<screenshot>https://raw.githubusercontent.com/nextcloud/calendar/main/screenshots/week_room_suggestion.png</screenshot>
 	<screenshot>https://raw.githubusercontent.com/nextcloud/calendar/main/screenshots/week_sidebar.png</screenshot>
 	<dependencies>
-		<php min-version="8.0" max-version="8.3" />
-		<nextcloud min-version="27" max-version="30" />
+		<php min-version="8.1" max-version="8.3" />
+		<nextcloud min-version="30" max-version="30" />
 	</dependencies>
 	<background-jobs>
 		<job>OCA\Calendar\BackgroundJob\CleanUpOutdatedBookingsJob</job>
diff --git a/composer.json b/composer.json
index 3960e11a65..c90d19ce10 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
     "config": {
         "platform": {
-            "php": "8.0"
+            "php": "8.1"
         },
         "sort-packages": true,
         "optimize-autoloader": true,
@@ -16,7 +16,7 @@
         }
     },
     "require": {
-        "php": ">= 8.0 <=8.3",
+        "php": ">= 8.1 <=8.3",
         "bamarni/composer-bin-plugin": "^1.8.2"
     },
     "scripts": {
diff --git a/vendor-bin/cs-fixer/composer.json b/vendor-bin/cs-fixer/composer.json
index 7404364d58..d79d056fae 100644
--- a/vendor-bin/cs-fixer/composer.json
+++ b/vendor-bin/cs-fixer/composer.json
@@ -1,7 +1,7 @@
 {
     "config": {
         "platform": {
-            "php": "8.0"
+            "php": "8.1"
         },
         "sort-packages": true
     },
diff --git a/vendor-bin/phpunit/composer.json b/vendor-bin/phpunit/composer.json
index 11fd5cf869..1ebb2a41d0 100644
--- a/vendor-bin/phpunit/composer.json
+++ b/vendor-bin/phpunit/composer.json
@@ -1,7 +1,7 @@
 {
     "config": {
         "platform": {
-            "php": "8.0"
+            "php": "8.1"
         },
         "sort-packages": true
     },
diff --git a/vendor-bin/psalm/composer.json b/vendor-bin/psalm/composer.json
index 5875ac7891..6cd81c9dcc 100644
--- a/vendor-bin/psalm/composer.json
+++ b/vendor-bin/psalm/composer.json
@@ -1,7 +1,7 @@
 {
     "config": {
         "platform": {
-            "php": "8.0"
+            "php": "8.1"
         }
     },
     "require-dev": {