diff --git a/src/Provider/Node/FallbackNodeProvider.php b/src/Provider/Node/FallbackNodeProvider.php
index 911f471..e4e4504 100644
--- a/src/Provider/Node/FallbackNodeProvider.php
+++ b/src/Provider/Node/FallbackNodeProvider.php
@@ -35,7 +35,10 @@ class FallbackNodeProvider implements NodeProviderInterface
         $this->nodeProviders = $providers;
     }
 
-    public function getNode(): ?string
+    /**
+     * @inheritDoc
+     */
+    public function getNode()
     {
         foreach ($this->nodeProviders as $provider) {
             if ($node = $provider->getNode()) {
diff --git a/tests/Generator/RandomGeneratorFactoryTest.php b/tests/Generator/RandomGeneratorFactoryTest.php
index 88cfc3e..39f404a 100644
--- a/tests/Generator/RandomGeneratorFactoryTest.php
+++ b/tests/Generator/RandomGeneratorFactoryTest.php
@@ -12,7 +12,7 @@ class RandomGeneratorFactoryTest extends TestCase
 {
     public function testFactoryReturnsRandomBytesGenerator(): void
     {
-        $generator = (new RandomGeneratorFactory)->getGenerator();
+        $generator = (new RandomGeneratorFactory())->getGenerator();
 
         $this->assertInstanceOf(RandomBytesGenerator::class, $generator);
     }
diff --git a/tests/Provider/Node/SystemNodeProviderTest.php b/tests/Provider/Node/SystemNodeProviderTest.php
index ae6accd..ad5485b 100644
--- a/tests/Provider/Node/SystemNodeProviderTest.php
+++ b/tests/Provider/Node/SystemNodeProviderTest.php
@@ -580,12 +580,12 @@ class SystemNodeProviderTest extends TestCase
      *
      * Provide a NULL to assert a function is never called.
      *
-     * @param string[]|null $fileGetContentsAssert
-     * @param string[]|null $globBodyAssert
-     * @param string[]|null $passthruBodyAssert
-     * @param string[]|null $constantBodyAssert
-     * @param string[]|null $iniGetDisableFunctionsAssert
-     * @param string[]|null $isReadableAssert
+     * @param array<int, string>|array<int, array<int,string>>|null $fileGetContentsAssert
+     * @param array<int, string>|array<int, array<int,string>>|null $globBodyAssert
+     * @param array<int, string>|array<int, array<int,string>>|null $passthruBodyAssert
+     * @param array<int, string>|array<int, array<int,string>>|null $constantBodyAssert
+     * @param array<int, string>|array<int, array<int,string>>|null $iniGetDisableFunctionsAssert
+     * @param array<int, string>|array<int, array<int,string>>|null $isReadableAssert
      */
     private function assertMockFunctions(
         ?array $fileGetContentsAssert,
diff --git a/tests/UuidFactoryTest.php b/tests/UuidFactoryTest.php
index 5c0427b..0ca2540 100644
--- a/tests/UuidFactoryTest.php
+++ b/tests/UuidFactoryTest.php
@@ -209,14 +209,14 @@ class UuidFactoryTest extends TestCase
         ];
     }
 
-    public function testFactoryReturnsDefaultNameGenerator()
+    public function testFactoryReturnsDefaultNameGenerator(): void
     {
         $factory = new UuidFactory();
 
         $this->assertInstanceOf(DefaultNameGenerator::class, $factory->getNameGenerator());
     }
 
-    public function testFactoryReturnsSetNameGenerator()
+    public function testFactoryReturnsSetNameGenerator(): void
     {
         $factory = new UuidFactory();
 
diff --git a/tests/UuidTest.php b/tests/UuidTest.php
index add5537..183c435 100644
--- a/tests/UuidTest.php
+++ b/tests/UuidTest.php
@@ -651,7 +651,7 @@ class UuidTest extends TestCase
     {
         $factory = new UuidFactory();
         $generator = new CombGenerator(
-            (new RandomGeneratorFactory)->getGenerator(),
+            (new RandomGeneratorFactory())->getGenerator(),
             $factory->getNumberConverter()
         );