laravel
diff --git a/‎src/Illuminate/Validation/Concerns/ValidatesAttributes.php
+1-1 b/‎src/Illuminate/Validation/Concerns/ValidatesAttributes.php
+1-1
@@ -1164,7 +1164,7 @@ public function validateJson($attribute, $value)
             return false;
         }
 
-        if (! is_scalar($value) && ! method_exists($value, '__toString')) {
+        if (! is_scalar($value) && ! is_null($value) && ! method_exists($value, '__toString')) {
             return false;
         }
Original file line number	Diff line number	Diff line change
`@@ -1164,7 +1164,7 @@ public function validateJson($attribute, $value)`
`1164`	`1164`	`return false;`
`1165`	`1165`	`}`
`1166`	`1166`
`1167`		`- if (! is_scalar($value) && ! method_exists($value, '__toString')) {`
	`1167`	`+ if (! is_scalar($value) && ! is_null($value) && ! method_exists($value, '__toString')) {`
`1168`	`1168`	`return false;`
`1169`	`1169`	`}`
`1170`	`1170`