diff --git a/library/Rules/Multiple.php b/library/Rules/Multiple.php
index 3c72834b5..722922ff2 100644
--- a/library/Rules/Multiple.php
+++ b/library/Rules/Multiple.php
@@ -9,6 +9,10 @@
 
 namespace Respect\Validation\Rules;
 
+use function filter_var;
+
+use const FILTER_VALIDATE_INT;
+
 /**
  * @author Danilo Benevides <danilobenevides01@gmail.com>
  * @author Henrique Moody <henriquemoody@gmail.com>
@@ -31,6 +35,9 @@ public function __construct(int $multipleOf)
      */
     public function validate($input): bool
     {
+        if (filter_var($input, FILTER_VALIDATE_INT) === false) {
+            return false;
+        }
         if ($this->multipleOf == 0) {
             return $input == 0;
         }