diff --git a/.github/workflows/phpunit-mysql.yml b/.github/workflows/phpunit-mysql.yml
index b7029d512e..cd1188ce47 100644
--- a/.github/workflows/phpunit-mysql.yml
+++ b/.github/workflows/phpunit-mysql.yml
@@ -48,7 +48,7 @@ jobs:
     strategy:
       matrix:
         php-versions: ['8.0', '8.1', '8.2', '8.3']
-        server-versions: ['master']
+        server-versions: ['stable28']
         mysql-versions: ['8.1']
 
     name: MySQL ${{ matrix.mysql-versions }} PHP ${{ matrix.php-versions }} Nextcloud ${{ matrix.server-versions }}
diff --git a/.github/workflows/phpunit-oci.yml b/.github/workflows/phpunit-oci.yml
index e1ae203274..3e4827e5b4 100644
--- a/.github/workflows/phpunit-oci.yml
+++ b/.github/workflows/phpunit-oci.yml
@@ -48,7 +48,7 @@ jobs:
     strategy:
       matrix:
         php-versions: ['8.2']
-        server-versions: ['master']
+        server-versions: ['stable28']
 
     services:
       oracle:
diff --git a/.github/workflows/phpunit-pgsql.yml b/.github/workflows/phpunit-pgsql.yml
index 45a82163ee..0b0f6c116f 100644
--- a/.github/workflows/phpunit-pgsql.yml
+++ b/.github/workflows/phpunit-pgsql.yml
@@ -48,7 +48,7 @@ jobs:
     strategy:
       matrix:
         php-versions: ['8.2']
-        server-versions: ['master']
+        server-versions: ['stable28']
 
     services:
       postgres:
diff --git a/.github/workflows/phpunit-sqlite.yml b/.github/workflows/phpunit-sqlite.yml
index ed1151ab99..4600aa000e 100644
--- a/.github/workflows/phpunit-sqlite.yml
+++ b/.github/workflows/phpunit-sqlite.yml
@@ -48,7 +48,7 @@ jobs:
     strategy:
       matrix:
         php-versions: ['8.2']
-        server-versions: ['master']
+        server-versions: ['stable28']
 
     steps:
       - name: Set app env