diff --git a/src/Rector/MethodCall/JsonCallToExplicitJsonCallRector.php b/src/Rector/MethodCall/JsonCallToExplicitJsonCallRector.php
index e7f732af..90bd0882 100644
--- a/src/Rector/MethodCall/JsonCallToExplicitJsonCallRector.php
+++ b/src/Rector/MethodCall/JsonCallToExplicitJsonCallRector.php
@@ -7,6 +7,7 @@
 use PhpParser\Node;
 use PhpParser\Node\Expr\MethodCall;
 use PhpParser\Node\Identifier;
+use PhpParser\Node\Scalar\String_;
 use PHPStan\Type\ObjectType;
 use Rector\Core\Rector\AbstractRector;
 use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
@@ -67,7 +68,7 @@ private function updateCall(MethodCall $methodCall): ?MethodCall
         $arg = $methodCall->getArgs()[0];
         $argValue = $arg->value;
 
-        if (! $argValue instanceof Node\Scalar\String_) {
+        if (! $argValue instanceof String_) {
             return null;
         }