diff --git a/rules/DowngradePhp74/Rector/LNumber/DowngradeNumericLiteralSeparatorRector.php b/rules/DowngradePhp74/Rector/LNumber/DowngradeNumericLiteralSeparatorRector.php
index 43c583216b3..df03d956554 100644
--- a/rules/DowngradePhp74/Rector/LNumber/DowngradeNumericLiteralSeparatorRector.php
+++ b/rules/DowngradePhp74/Rector/LNumber/DowngradeNumericLiteralSeparatorRector.php
@@ -69,7 +69,7 @@ public function refactor(Node $node): ?Node
             return null;
         }
 
-        if (\str_contains($rawValue, '+')) {
+        if (\str_contains((string) $rawValue, '+')) {
             return null;
         }
 
diff --git a/rules/Php74/Rector/LNumber/AddLiteralSeparatorToNumberRector.php b/rules/Php74/Rector/LNumber/AddLiteralSeparatorToNumberRector.php
index 1d3b775915a..ed43177c430 100644
--- a/rules/Php74/Rector/LNumber/AddLiteralSeparatorToNumberRector.php
+++ b/rules/Php74/Rector/LNumber/AddLiteralSeparatorToNumberRector.php
@@ -113,8 +113,8 @@ public function refactor(Node $node): ?Node
             return null;
         }
 
-        if (\str_contains($rawValue, '.')) {
-            [$mainPart, $decimalPart] = explode('.', $rawValue);
+        if (\str_contains((string) $rawValue, '.')) {
+            [$mainPart, $decimalPart] = explode('.', (string) $rawValue);
 
             $chunks = $this->strSplitNegative($mainPart, self::GROUP_SIZE);
             $literalSeparatedNumber = implode('_', $chunks) . '.' . $decimalPart;