diff --git a/.github/workflows/cypress.yml b/.github/workflows/cypress.yml
index 0c3004ea1c9..f937b268b87 100644
--- a/.github/workflows/cypress.yml
+++ b/.github/workflows/cypress.yml
@@ -82,7 +82,7 @@ jobs:
         node-version: [16]
         containers: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
         php-versions: [ '8.1' ]
-        server-versions: [ 'master' ]
+        server-versions: [ 'stable28' ]
         run-in-parallel:
           - false # only for PRs: ${{ !!github.head_ref }}
 
diff --git a/.github/workflows/phpunit-mysql.yml b/.github/workflows/phpunit-mysql.yml
index 4e6748d4b82..5a281ac80a9 100644
--- a/.github/workflows/phpunit-mysql.yml
+++ b/.github/workflows/phpunit-mysql.yml
@@ -39,7 +39,7 @@ jobs:
     strategy:
       matrix:
         php-versions: ['8.0', '8.1', '8.2', '8.3']
-        server-versions: ['master']
+        server-versions: ['stable28']
 
     services:
       mysql:
diff --git a/.github/workflows/phpunit-oci.yml b/.github/workflows/phpunit-oci.yml
index 129f848cc69..ba3608d12b8 100644
--- a/.github/workflows/phpunit-oci.yml
+++ b/.github/workflows/phpunit-oci.yml
@@ -39,7 +39,7 @@ jobs:
     strategy:
       matrix:
         php-versions: ['8.0']
-        server-versions: ['master']
+        server-versions: ['stable28']
 
     services:
       oracle:
diff --git a/.github/workflows/phpunit-pgsql.yml b/.github/workflows/phpunit-pgsql.yml
index c944d35c56c..379dfd1dcb1 100644
--- a/.github/workflows/phpunit-pgsql.yml
+++ b/.github/workflows/phpunit-pgsql.yml
@@ -39,7 +39,7 @@ jobs:
     strategy:
       matrix:
         php-versions: ['8.0']
-        server-versions: ['master']
+        server-versions: ['stable28']
 
     services:
       postgres:
diff --git a/.github/workflows/phpunit-sqlite.yml b/.github/workflows/phpunit-sqlite.yml
index 35463b0dc0e..9ce8b09b864 100644
--- a/.github/workflows/phpunit-sqlite.yml
+++ b/.github/workflows/phpunit-sqlite.yml
@@ -39,7 +39,7 @@ jobs:
     strategy:
       matrix:
         php-versions: ['8.0']
-        server-versions: ['master']
+        server-versions: ['stable28']
 
     steps:
       - name: Set app env
diff --git a/composer.json b/composer.json
index a43c1f2345d..7cd2de11fc4 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,7 @@
 		"psalm/phar": "^5.4",
 		"phpunit/phpunit": "^9.5",
 		"ext-mbstring": "*",
-		"nextcloud/ocp": "dev-master"
+		"nextcloud/ocp": "dev-stable28"
 	},
 	"license": "AGPLv3",
 	"authors": [
diff --git a/composer.lock b/composer.lock
index ef7ace67797..f0a833d2332 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "6448ee16a90cb86a0fe49d0822d644c7",
+    "content-hash": "9c9d73180e95e1c178dacba90da3834d",
     "packages": [],
     "packages-dev": [
         {
@@ -179,30 +179,29 @@
         },
         {
             "name": "nextcloud/ocp",
-            "version": "dev-master",
+            "version": "dev-stable28",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nextcloud-deps/ocp.git",
-                "reference": "488e4ad136853e5b24efa745e941c785cf41c51e"
+                "reference": "2ac04202af2904a000d3e4090f7def301a4cecfe"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nextcloud-deps/ocp/zipball/488e4ad136853e5b24efa745e941c785cf41c51e",
-                "reference": "488e4ad136853e5b24efa745e941c785cf41c51e",
+                "url": "https://api.github.com/repos/nextcloud-deps/ocp/zipball/2ac04202af2904a000d3e4090f7def301a4cecfe",
+                "reference": "2ac04202af2904a000d3e4090f7def301a4cecfe",
                 "shasum": ""
             },
             "require": {
-                "php": "~8.0 || ~8.1 || ~8.2",
+                "php": "~8.0 || ~8.1 || ~8.2 || ~8.3",
                 "psr/clock": "^1.0",
                 "psr/container": "^2.0.2",
                 "psr/event-dispatcher": "^1.0",
                 "psr/log": "^1.1.4"
             },
-            "default-branch": true,
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "28.0.0-dev"
+                    "dev-stable28": "28.0.0-dev"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -218,9 +217,9 @@
             "description": "Composer package containing Nextcloud's public API (classes, interfaces)",
             "support": {
                 "issues": "https://github.com/nextcloud-deps/ocp/issues",
-                "source": "https://github.com/nextcloud-deps/ocp/tree/master"
+                "source": "https://github.com/nextcloud-deps/ocp/tree/stable28"
             },
-            "time": "2023-11-18T00:32:35+00:00"
+            "time": "2023-11-23T10:57:48+00:00"
         },
         {
             "name": "nikic/php-parser",