diff --git a/.github/workflows/php-unit.yml b/.github/workflows/php-unit.yml
index 62542fa..e1a7811 100644
--- a/.github/workflows/php-unit.yml
+++ b/.github/workflows/php-unit.yml
@@ -43,6 +43,19 @@ jobs:
     steps:
       - uses: Icinga/github-actions/.github/actions/php-and-dependencies@main
         name: Setup PHP and dependencies
+        env: &phpunit-env
+          ICINGAWEB_TEST_MYSQL_PORT: ${{ job.services.mysql.ports['3306'] }}
+          ICINGAWEB_TEST_PGSQL_PORT: ${{ job.services.pgsql.ports['5432'] }}
+          MYSQL_TESTDB_HOST: 127.0.0.1
+          MYSQL_TESTDB_PORT: ${{ job.services.mysql.ports['3306'] }}
+          MYSQL_TESTDB: icinga_unittest
+          MYSQL_TESTDB_USER: icinga_unittest
+          MYSQL_TESTDB_PASSWORD: icinga_unittest
+          PGSQL_TESTDB_HOST: 127.0.0.1
+          PGSQL_TESTDB_PORT: ${{ job.services.pgsql.ports['5432'] }}
+          PGSQL_TESTDB: icinga_unittest
+          PGSQL_TESTDB_USER: icinga_unittest
+          PGSQL_TESTDB_PASSWORD: icinga_unittest
         with:
           php-version: ${{ inputs.php-version }}
           php-extensions: ${{ inputs.php-extensions }}
@@ -58,19 +71,7 @@ jobs:
         run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
 
       - name: Run PHPUnit
-        env:
-          ICINGAWEB_TEST_MYSQL_PORT: ${{ job.services.mysql.ports['3306'] }}
-          ICINGAWEB_TEST_PGSQL_PORT: ${{ job.services.pgsql.ports['5432'] }}
-          MYSQL_TESTDB_HOST: 127.0.0.1
-          MYSQL_TESTDB_PORT: ${{ job.services.mysql.ports['3306'] }}
-          MYSQL_TESTDB: icinga_unittest
-          MYSQL_TESTDB_USER: icinga_unittest
-          MYSQL_TESTDB_PASSWORD: icinga_unittest
-          PGSQL_TESTDB_HOST: 127.0.0.1
-          PGSQL_TESTDB_PORT: ${{ job.services.pgsql.ports['5432'] }}
-          PGSQL_TESTDB: icinga_unittest
-          PGSQL_TESTDB_USER: icinga_unittest
-          PGSQL_TESTDB_PASSWORD: icinga_unittest
+        env: *phpunit-env
         # Unlike linting and static analysis, which report errors via the GitHub Actions API and
         # therefore (have to) use relative paths, we can use working-directory here because
         # PHPUnit provides absolute paths and GitHub Actions problem matchers work with absolute paths.
@@ -121,10 +122,10 @@ jobs:
         # Service will not be started if image is empty.
         image: ${{ inputs.databases && 'mariadb' || '' }}
         env:
-          MARIADB_RANDOM_ROOT_PASSWORD: yes
           MARIADB_DATABASE: icinga_unittest
           MARIADB_USER: icinga_unittest
           MARIADB_PASSWORD: icinga_unittest
+          MARIADB_ROOT_PASSWORD: icinga_unittest
         options: >-
           --health-cmd "mariadb-admin ping"
           --health-interval 10s