diff --git a/composer.json b/composer.json
index 626a870..b20d16e 100644
--- a/composer.json
+++ b/composer.json
@@ -115,7 +115,7 @@
 		"fix:php:cs": "@php php-cs-fixer fix",
 		"fix:php:rector": [
 			"@composer require --dev rector/rector",
-			"@php rector process",
+			"@php rector process --clear-cache",
 			"@composer remove --dev rector/rector"
 		]
 	}
diff --git a/src/Console/Command/TypeTrait.php b/src/Console/Command/TypeTrait.php
index b37b323..623f260 100644
--- a/src/Console/Command/TypeTrait.php
+++ b/src/Console/Command/TypeTrait.php
@@ -57,7 +57,7 @@ private function getType(InputInterface $input): string
                     throw new \RuntimeException(sprintf($composerManifestError, 'read')); // @codeCoverageIgnore
                 }
 
-                $composerManifest = \json_decode($composerManifest, true);
+                $composerManifest = \json_decode($composerManifest, true, 512, 0);
                 if ($composerManifest === false || !is_array($composerManifest)) {
                     throw new \RuntimeException(sprintf($composerManifestError, 'decoded'));
                 }
diff --git a/tests/Unit/Smoke/InstallViaComposerTest.php b/tests/Unit/Smoke/InstallViaComposerTest.php
index 7070357..4788415 100644
--- a/tests/Unit/Smoke/InstallViaComposerTest.php
+++ b/tests/Unit/Smoke/InstallViaComposerTest.php
@@ -74,7 +74,7 @@ public function testInstallationViaPathIsPossible(): void
     {
         $filesystem = self::getFilesystem();
 
-        $tmpPath = self::getTestPath();
+        $testPath = self::getTestPath();
 
         $initialComposerFileState = [
             'repositories' => [
@@ -89,13 +89,13 @@ public function testInstallationViaPathIsPossible(): void
         ];
 
         file_put_contents(
-            $tmpPath . '/composer.json',
+            $testPath . '/composer.json',
             json_encode($initialComposerFileState, JSON_PRETTY_PRINT)
         );
 
-        static::assertCommandsWork(self::STEPS_TO_VERIFY_INSTALLATION, $tmpPath);
+        static::assertCommandsWork(self::STEPS_TO_VERIFY_INSTALLATION, $testPath);
 
-        $filesystem->remove($tmpPath);
+        $filesystem->remove($testPath);
     }
 
     // test that respects `export-ignore` from `.gitattributes` file
@@ -106,7 +106,7 @@ public function testInstallationViaArtifactIsPossible(): void
             self::markTestIncomplete('No zip extension available.');
         }
 
-        $tmpPath = self::getTestPath();
+        $testPath = self::getTestPath();
         $tmpArtifactPath = self::getTestPath();
 
         $fakeVersion = preg_replace('#\-.+#', '', Application::VERSION, 1) . '-alpha987654321';
@@ -124,7 +124,7 @@ public function testInstallationViaArtifactIsPossible(): void
         ];
 
         file_put_contents(
-            $tmpPath . '/composer.json',
+            $testPath . '/composer.json',
             json_encode($initialComposerFileState, JSON_PRETTY_PRINT)
         );
 
@@ -151,7 +151,7 @@ public function testInstallationViaArtifactIsPossible(): void
 
         static::assertCommandsWork($stepsToInitializeArtifact, $cwd);
         static::assertCommandsWork($stepsToPrepareArtifact, $tmpArtifactPath);
-        static::assertCommandsWork(self::STEPS_TO_VERIFY_INSTALLATION, $tmpPath);
+        static::assertCommandsWork(self::STEPS_TO_VERIFY_INSTALLATION, $testPath);
     }
 
     /**
diff --git a/tests/Unit/TestCase.php b/tests/Unit/TestCase.php
index 17750c9..753aad8 100644
--- a/tests/Unit/TestCase.php
+++ b/tests/Unit/TestCase.php
@@ -91,16 +91,16 @@ protected static function getFixtureFilename(string $filename): string
 
     protected static function getTestPath(?string $subFolder = null): string
     {
-        $fs = self::getFilesystem();
+        $filesystem = self::getFilesystem();
 
-        $testPath = $fs->tempnam(self::$testPath, 'test_');
+        $testPath = $filesystem->tempnam(self::$testPath, 'test_');
 
         if ($subFolder !== null) {
             $testPath .= '/' . $subFolder;
         }
 
-        $fs->remove($testPath);
-        $fs->mkdir($testPath);
+        $filesystem->remove($testPath);
+        $filesystem->mkdir($testPath);
         \chdir($testPath);
 
         return $testPath;
@@ -126,10 +126,10 @@ protected static function getFilesystem(): Filesystem
      */
     protected static function createFiles(string $testPath, array $files): void
     {
-        $fs = self::getFilesystem();
+        $filesystem = self::getFilesystem();
 
         foreach ($files as $target => $source) {
-            $fs->copy(static::getFilename($source), $testPath . '/' . $target);
+            $filesystem->copy(static::getFilename($source), $testPath . '/' . $target);
         }
     }
 }