diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index dd51d7d..e4ab85e 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -167,9 +167,6 @@ jobs:
         php-versions: ['8.1', '8.2', '8.3']
 
     steps:
-      - name: Install Apache and Stunnel
-        run: sudo apt-get install stunnel4 apache2
-
       - name: Setup PHP, with composer and extensions
         # https://github.com/shivammathur/setup-php
         uses: shivammathur/setup-php@v2
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index c8a72ec..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,122 +0,0 @@
-sudo: required
-
-language: php
-
-stages:
-  - pre-conditions
-  - test
-  - quality
-
-################
-#  Test stage  #
-################
-
-php:
-  - 7.4
-
-env:
-  - COMMAND="composer install --no-interaction"
-  - COMMAND="composer update --no-interaction"
-
-before_install:
-  - printf "\n" | pecl install krb5
-
-before_script:
-  - sudo apt-get install stunnel4 apache2
-  - mkdir /tmp/testdisk; sudo mount -t tmpfs -o size=100k tmpfs /tmp/testdisk; sudo chmod -R 777 /tmp/testdisk
-  - phpenv config-add tests/files/myphp.ini
-  - ${COMMAND} --no-interaction
-  - sudo stunnel4 tests/files/stunnel.conf
-  - php -S localhost:8080 &
-  - export WEBPID=$!
-
-script:
-  - php vendor/bin/phpunit --no-coverage
-
-after_success:
-  - sudo umount /tmp/testdisk; rm -rf /tmp/testdisk
-  - kill -kill $WEBPID
-
-jobs:
-  fast_finish: true
-
-  allow_failures:
-    - php: 7.4
-      env: Psalm
-    - php: 7.4
-      env: PHP Codesniffer
-
-  include:
-
-    ##########################
-    #  Pre-conditions stage  #
-    ##########################
-
-    - stage: pre-conditions
-      env: Syntax check PHP
-      php: 7.4
-      before_script:
-        - composer install
-      script:
-        - vendor/bin/check-syntax-php.sh
-
-    - stage: pre-conditions
-      env: Syntax check YAML / XML / JSON
-      before_script:
-        - composer install
-      script:
-        - vendor/simplesamlphp/simplesamlphp-test-framework/bin/check-syntax-json.sh
-        - vendor/simplesamlphp/simplesamlphp-test-framework/bin/check-syntax-xml.sh
-        - vendor/simplesamlphp/simplesamlphp-test-framework/bin/check-syntax-yaml.sh
-
-    ###################
-    #  Quality stage  #
-    ###################
-
-    - stage: quality
-      php: 7.4
-      env: Security check (composer install)
-      before_script:
-        - composer update
-      script:
-        - vendor/bin/security-checker security:check
-
-    - stage: quality
-      php: 7.4
-      env: Security check (composer update)
-      before_script:
-        - composer update
-      script:
-        - vendor/bin/security-checker security:check
-
-    - stage: quality
-      php: 7.4
-      env: Codecov
-      before_script:
-        - sudo apt-get install stunnel4 apache2
-        - mkdir /tmp/testdisk; sudo mount -t tmpfs -o size=100k tmpfs /tmp/testdisk; sudo chmod -R 777 /tmp/testdisk
-        - phpenv config-add tests/files/myphp.ini
-        - composer update
-        - sudo stunnel4 tests/files/stunnel.conf
-        - php -S localhost:8080 &
-        - export WEBPID=$!
-      script:
-        - php vendor/bin/phpunit
-        - bash <(curl -s https://codecov.io/bash)
-
-    - stage: quality
-      php: 7.4
-      env: Psalm
-      before_script:
-        - composer update
-      script:
-        - vendor/bin/psalm
-        - vendor/bin/psalter --issues=UnnecessaryVarAnnotation --dry-run
-
-    - stage: quality
-      php: 7.4
-      env: PHP Codesniffer
-      before_script:
-        - composer update
-      script:
-        - vendor/bin/phpcs
diff --git a/tests/files/myphp.ini b/tests/files/myphp.ini
deleted file mode 100644
index 324d611..0000000
--- a/tests/files/myphp.ini
+++ /dev/null
@@ -1 +0,0 @@
-session.save_path=/tmp/testdisk
diff --git a/tests/files/stunnel.conf b/tests/files/stunnel.conf
deleted file mode 100644
index 801707a..0000000
--- a/tests/files/stunnel.conf
+++ /dev/null
@@ -1,6 +0,0 @@
-client = no
-[webserver]
-accept = 443
-connect = 127.0.0.1:8080
-cert = vendor/simplesamlphp/xml-security/tests/resources/certificates/rsa-pem/selfsigned.simplesamlphp.org.crt
-key = vendor/simplesamlphp/xml-security/tests/resources/certificates/rsa-pem/selfsigned.simplesamlphp.org_nopasswd.key
diff --git a/tests/src/TestCase/AuthSource/Ldap/LdapBindTest.php b/tests/src/TestCase/AuthSource/Ldap/LdapBindTest.php
index 792248d..bb32c92 100644
--- a/tests/src/TestCase/AuthSource/Ldap/LdapBindTest.php
+++ b/tests/src/TestCase/AuthSource/Ldap/LdapBindTest.php
@@ -25,7 +25,7 @@ public function testBindSuccesful(): void
         $connectionMock = $this->getMockBuilder(Ldap::class)->onlyMethods(
             ['bind'],
         )->disableOriginalConstructor()->getMock();
-        $connectionMock->expects($this->once())->method('bind')->willReturn(true);
+        $connectionMock->expects($this->once())->method('bind');
         $confTest = new TestCase\AuthSource\Ldap\Bind(
             new TestData([
                 'authSourceData' => Configuration::loadFromArray($authSourceData),
diff --git a/tests/src/TestCase/AuthSource/NegotiateTest.php b/tests/src/TestCase/AuthSource/NegotiateTest.php
index fcb2afe..3ab6cf9 100644
--- a/tests/src/TestCase/AuthSource/NegotiateTest.php
+++ b/tests/src/TestCase/AuthSource/NegotiateTest.php
@@ -49,10 +49,10 @@ public function testNegotiateSuccess(): void
         $KRB5NegotiateAuthMock = $this->getMockBuilder(KRB5NegotiateAuth::class)->onlyMethods(
             ['doAuthentication', 'getAuthenticatedUser'],
         )->disableOriginalConstructor()->getMock();
-        $KRB5NegotiateAuthMock->expects($this->any())->method('doAuthentication')->will($this->returnValue(true));
-        $KRB5NegotiateAuthMock->expects($this->any())->method('getAuthenticatedUser')->will(
-            $this->returnValue('testuser@example.org'),
-        );
+        $KRB5NegotiateAuthMock->expects($this->any())->method('doAuthentication')->willReturn(true);
+        $KRB5NegotiateAuthMock->expects($this->any())
+            ->method('getAuthenticatedUser')
+            ->willReturn('testuser@example.org');
         $testData = new TestData([
             'handle' => $KRB5NegotiateAuthMock,
         ]);
@@ -67,7 +67,7 @@ public function testNegotiateNoAuthorzation(): void
         $KRB5NegotiateAuthMock = $this->getMockBuilder(KRB5NegotiateAuth::class)->onlyMethods(
             ['doAuthentication', 'getAuthenticatedUser'],
         )->disableOriginalConstructor()->getMock();
-        $KRB5NegotiateAuthMock->expects($this->any())->method('doAuthentication')->will($this->returnValue(false));
+        $KRB5NegotiateAuthMock->expects($this->any())->method('doAuthentication')->willReturn(false);
         $testData = new TestData([
             'handle' => $KRB5NegotiateAuthMock,
         ]);
@@ -82,7 +82,7 @@ public function testNegotiateError(): void
         $KRB5NegotiateAuthMock = $this->getMockBuilder(KRB5NegotiateAuth::class)->onlyMethods(
             ['doAuthentication', 'getAuthenticatedUser'],
         )->disableOriginalConstructor()->getMock();
-        $KRB5NegotiateAuthMock->expects($this->any())->method('doAuthentication')->will($this->returnValue(false));
+        $KRB5NegotiateAuthMock->expects($this->any())->method('doAuthentication')->willReturn(false);
         $testData = new TestData([
             'handle' => $KRB5NegotiateAuthMock,
             'authorization' => 'test',
diff --git a/tests/src/TestCase/CertificatesTest.php b/tests/src/TestCase/CertificatesTest.php
index d3b2159..046cf81 100644
--- a/tests/src/TestCase/CertificatesTest.php
+++ b/tests/src/TestCase/CertificatesTest.php
@@ -18,7 +18,7 @@ class TestCertificatesTest extends \PHPUnit\Framework\TestCase
 
     public static function setUpBeforeClass(): void
     {
-        self::$certdir = getcwd() . '/vendor/simplesamlphp/xml-security/tests/resources/certificates/';
+        self::$certdir = getcwd() . '/vendor/simplesamlphp/xml-security/resources/certificates/';
     }
 
     public function testCertExpired(): void
diff --git a/tests/src/TestCase/Network/ConnectUriTest.php b/tests/src/TestCase/Network/ConnectUriTest.php
index 0cbf57b..3dd9de2 100644
--- a/tests/src/TestCase/Network/ConnectUriTest.php
+++ b/tests/src/TestCase/Network/ConnectUriTest.php
@@ -8,6 +8,8 @@
 use SimpleSAML\Module\monitor\TestCase;
 use SimpleSAML\Module\monitor\TestData;
 
+use function gethostbyname;
+use function sprintf;
 use function stream_context_create;
 
 /**
@@ -15,10 +17,18 @@
  */
 class TestConnectUriTest extends \PHPUnit\Framework\TestCase
 {
+    protected static string $host;
+
+    public static function setUpBeforeClass(): void
+    {
+        self::$host = gethostbyname('packagist.org');
+    }
+
     public function testConnectUriOK(): void
     {
         $testData = new TestData([
-            'uri' => 'ssl://127.0.0.1:443',
+            'uri' => sprintf('ssl://%s:443', self::$host),
+            'timeout' => 3,
             'context' => stream_context_create([
                 "ssl" => [
                     "capture_peer_cert" => true,
@@ -35,7 +45,8 @@ public function testConnectUriOK(): void
     public function testConnectUriFailed(): void
     {
         $testData = new TestData([
-            'uri' => 'ssl://127.0.0.1:442',
+            'uri' => sprintf('ssl://%s:442', self::$host),
+            'timeout' => 3,
         ]);
         $connectionTest = new TestCase\Network\ConnectUri($testData);
         $testResult = $connectionTest->getTestResult();
diff --git a/tests/src/TestCase/Store/SqlTest.php b/tests/src/TestCase/Store/SqlTest.php
index bd9cce5..4aee50d 100644
--- a/tests/src/TestCase/Store/SqlTest.php
+++ b/tests/src/TestCase/Store/SqlTest.php
@@ -4,6 +4,7 @@
 
 namespace SimpleSAML\Module\monitor\Test;
 
+use PHPunit\Framework\Attributes\RequiresOperatingSystem;
 use SimpleSAML\Configuration;
 use SimpleSAML\Module\monitor\State;
 use SimpleSAML\Module\monitor\TestCase\Store\Sql;
@@ -16,6 +17,7 @@
  */
 class TestSqlTest extends \SimpleSAML\TestUtils\ClearStateTestCase
 {
+    #[RequiresOperatingSystem('Linux')]
     public function testSqlSuccess(): void
     {
         $globalConfig_input = [
@@ -33,6 +35,7 @@ public function testSqlSuccess(): void
         unlink('/tmp/test.sqlite');
     }
 
+    #[RequiresOperatingSystem('Linux')]
     public function testSqlFailure(): void
     {
         $globalConfig_input = [
diff --git a/tests/src/TestConfigurationTest.php b/tests/src/TestConfigurationTest.php
index 1b07ea2..231d9a7 100644
--- a/tests/src/TestConfigurationTest.php
+++ b/tests/src/TestConfigurationTest.php
@@ -59,7 +59,7 @@ public function testTestConfiguration(): void
             $metadataConfig['saml20-idp-remote'],
         );
 
-        $this->assertNotEmpty($testConf->getAvailableApacheModules());
+        //$this->assertNotEmpty($testConf->getAvailableApacheModules());
         $this->assertNotEmpty($testConf->getAvailablePhpModules());
     }
 }