3 files changed, 3 insertions, 3 deletions

diff --git a/tests/config/ConfigJsonTest.php b/tests/config/ConfigJsonTest.php
index 33160eb0..f1612e9b 100644
--- a/tests/config/ConfigJsonTest.php
+++ b/tests/config/ConfigJsonTest.php
@@ -11,7 +11,7 @@ class ConfigJsonTest extends \PHPUnit\Framework\TestCase
      */
     protected $configIO;
 
-    public function setUp()
+    protected function setUp(): void
     {
         $this->configIO = new ConfigJson();
     }
diff --git a/tests/config/ConfigManagerTest.php b/tests/config/ConfigManagerTest.php
index 33830bc9..69456bce 100644
--- a/tests/config/ConfigManagerTest.php
+++ b/tests/config/ConfigManagerTest.php
@@ -14,7 +14,7 @@ class ConfigManagerTest extends \PHPUnit\Framework\TestCase
      */
     protected $conf;
 
-    public function setUp()
+    protected function setUp(): void
     {
         $this->conf = new ConfigManager('tests/utils/config/configJson');
     }
diff --git a/tests/config/ConfigPhpTest.php b/tests/config/ConfigPhpTest.php
index fb91b51b..a9aa80f5 100644
--- a/tests/config/ConfigPhpTest.php
+++ b/tests/config/ConfigPhpTest.php
@@ -15,7 +15,7 @@ class ConfigPhpTest extends \PHPUnit\Framework\TestCase
      */
     protected $configIO;
 
-    public function setUp()
+    protected function setUp(): void
     {
         $this->configIO = new ConfigPhp();
     }