diff --git a/framework/db/sqlite/QueryBuilder.php b/framework/db/sqlite/QueryBuilder.php
index 4014d9b940..7931334806 100644
--- a/framework/db/sqlite/QueryBuilder.php
+++ b/framework/db/sqlite/QueryBuilder.php
@@ -66,7 +66,8 @@ class QueryBuilder extends \yii\db\QueryBuilder
     {
         // SQLite supports batch insert natively since 3.7.11
         // http://www.sqlite.org/releaselog/3_7_11.html
-        if (version_compare(\SQLite3::version()['versionString'], '3.7.11', '>=')) {
+        $this->db->open(); // ensure pdo is not null
+        if (version_compare($this->db->pdo->getAttribute(\PDO::ATTR_SERVER_VERSION), '3.7.11', '>=')) {
             return parent::batchInsert($table, $columns, $rows);
         }
 
diff --git a/tests/unit/framework/db/DatabaseTestCase.php b/tests/unit/framework/db/DatabaseTestCase.php
index 64675fa100..1449f68978 100644
--- a/tests/unit/framework/db/DatabaseTestCase.php
+++ b/tests/unit/framework/db/DatabaseTestCase.php
@@ -11,7 +11,7 @@ abstract class DatabaseTestCase extends TestCase
     /**
      * @var Connection
      */
-    protected $db;
+    private $_db;
 
     protected function setUp()
     {
@@ -28,8 +28,8 @@ abstract class DatabaseTestCase extends TestCase
 
     protected function tearDown()
     {
-        if ($this->db) {
-            $this->db->close();
+        if ($this->_db) {
+            $this->_db->close();
         }
         $this->destroyApplication();
     }
@@ -41,8 +41,8 @@ abstract class DatabaseTestCase extends TestCase
      */
     public function getConnection($reset = true, $open = true)
     {
-        if (!$reset && $this->db) {
-            return $this->db;
+        if (!$reset && $this->_db) {
+            return $this->_db;
         }
         $config = $this->database;
         if (isset($config['fixture'])) {
@@ -52,11 +52,11 @@ abstract class DatabaseTestCase extends TestCase
             $fixture = null;
         }
         try {
-            $this->db = $this->prepareDatabase($config, $fixture, $open);
+            $this->_db = $this->prepareDatabase($config, $fixture, $open);
         } catch (\Exception $e) {
             $this->markTestSkipped("Something wrong when preparing database: " . $e->getMessage());
         }
-        return $this->db;
+        return $this->_db;
     }
 
     public function prepareDatabase($config, $fixture, $open = true)
diff --git a/tests/unit/framework/db/sqlite/SqliteQueryBuilderTest.php b/tests/unit/framework/db/sqlite/SqliteQueryBuilderTest.php
index 3d5a861833..34ab18aacd 100644
--- a/tests/unit/framework/db/sqlite/SqliteQueryBuilderTest.php
+++ b/tests/unit/framework/db/sqlite/SqliteQueryBuilderTest.php
@@ -84,7 +84,8 @@ class SqliteQueryBuilderTest extends QueryBuilderTest
 
     public function testBatchInsert()
     {
-        if (version_compare(\SQLite3::version()['versionString'], '3.7.11', '>=')) {
+        $db = $this->getConnection();
+        if (version_compare($db->pdo->getAttribute(\PDO::ATTR_SERVER_VERSION), '3.7.11', '>=')) {
             $this->markTestSkipped('This test is only relevant for SQLite < 3.7.11');
         }
         $sql = $this->getQueryBuilder()->batchInsert('{{customer}} t', ['t.id', 't.name'], [[1, 'a'], [2, 'b']]);