diff --git a/composer.json b/composer.json
index 9b0131921c5c..b9799247d5aa 100644
--- a/composer.json
+++ b/composer.json
@@ -33,7 +33,7 @@
         "phpunit/phpcov": "^8.2",
         "phpunit/phpunit": "^9.1",
         "predis/predis": "^1.1 || ^2.0",
-        "rector/rector": "0.18.12",
+        "rector/rector": "0.18.13",
         "vimeo/psalm": "^5.0"
     },
     "replace": {
diff --git a/rector.php b/rector.php
index 6d69a0fba2fd..5be63b31e59d 100644
--- a/rector.php
+++ b/rector.php
@@ -145,9 +145,14 @@
     $rectorConfig->rule(TernaryEmptyArrayArrayDimFetchToCoalesceRector::class);
     $rectorConfig->rule(EmptyOnNullableObjectToInstanceOfRector::class);
     $rectorConfig->rule(DisallowedEmptyRuleFixerRector::class);
-    $rectorConfig->rule(StringClassNameToClassConstantRector::class);
     $rectorConfig->rule(PrivatizeFinalClassPropertyRector::class);
     $rectorConfig->rule(CompleteDynamicPropertiesRector::class);
     $rectorConfig->rule(BooleanInIfConditionRuleFixerRector::class);
     $rectorConfig->rule(SingleInArrayToCompareRector::class);
+
+    $rectorConfig
+        ->ruleWithConfiguration(StringClassNameToClassConstantRector::class, [
+            // keep '\\' prefix string on string '\Foo\Bar'
+            StringClassNameToClassConstantRector::SHOULD_KEEP_PRE_SLASH => true,
+        ]);
 };