diff --git a/src/bundle/SystemInfo/EzcSystemInfoWrapper.php b/src/bundle/SystemInfo/EzcSystemInfoWrapper.php
index 66a86d1..2053f5b 100644
--- a/src/bundle/SystemInfo/EzcSystemInfoWrapper.php
+++ b/src/bundle/SystemInfo/EzcSystemInfoWrapper.php
@@ -28,14 +28,16 @@ class EzcSystemInfoWrapper
 
     public ?float $cpuSpeed;
 
-    /** @var int */
     public ?int $memorySize;
 
     public ?string $lineSeparator;
 
     public ?string $backupFileName;
 
-    public ?string $phpVersion;
+    /**
+     * @var array<int, string>|null
+     */
+    public ?array $phpVersion;
 
     public ?ezcSystemInfoAccelerator $phpAccelerator;
 
@@ -50,7 +52,7 @@ public function __construct()
             return;
         }
 
-        foreach (array_keys(get_object_vars($this)) as $var) {
+        foreach (array_keys(get_class_vars(self::class)) as $var) {
             $this->$var = $ezcSystemInfo->$var;
         }
     }
diff --git a/tests/bundle/SystemInfo/Collector/EzcPhpSystemInfoCollectorTest.php b/tests/bundle/SystemInfo/Collector/EzcPhpSystemInfoCollectorTest.php
index cbf7d87..fbb1482 100644
--- a/tests/bundle/SystemInfo/Collector/EzcPhpSystemInfoCollectorTest.php
+++ b/tests/bundle/SystemInfo/Collector/EzcPhpSystemInfoCollectorTest.php
@@ -30,7 +30,7 @@ protected function setUp(): void
             ->getMockBuilder(EzcSystemInfoWrapper::class)
             ->disableOriginalConstructor()
             ->getMock();
-        $this->ezcSystemInfoMock->phpVersion = PHP_VERSION;
+        $this->ezcSystemInfoMock->phpVersion = explode('.', PHP_VERSION);
 
         $this->ezcSystemInfoMock->phpAccelerator = $this
             ->getMockBuilder(ezcSystemInfoAccelerator::class)
@@ -60,7 +60,7 @@ public function testCollect(): void
 
         self::assertEquals(
             new PhpSystemInfo([
-                'version' => $this->ezcSystemInfoMock->phpVersion,
+                'version' => implode('.', $this->ezcSystemInfoMock->phpVersion),
                 'acceleratorEnabled' => $this->ezcSystemInfoMock->phpAccelerator->isEnabled,
                 'acceleratorName' => $this->ezcSystemInfoMock->phpAccelerator->name,
                 'acceleratorURL' => $this->ezcSystemInfoMock->phpAccelerator->url,