diff --git a/src/Illuminate/Validation/Concerns/ValidatesAttributes.php b/src/Illuminate/Validation/Concerns/ValidatesAttributes.php
index 35492c65b6e6..ae610385437b 100644
--- a/src/Illuminate/Validation/Concerns/ValidatesAttributes.php
+++ b/src/Illuminate/Validation/Concerns/ValidatesAttributes.php
@@ -673,7 +673,7 @@ public function validateDecimal($attribute, $value, $parameters)
 
         $matches = [];
 
-        if (preg_match('/^[+-]?\d*\.?(\d*)$/', $value, $matches) !== 1) {
+        if (preg_match('/^[+-]?\d*\.?(\d*)$/', (string) $value, $matches) !== 1) {
             return false;
         }
 
@@ -1699,7 +1699,7 @@ public function validateMaxDigits($attribute, $value, $parameters)
 
         $length = strlen((string) $value);
 
-        return ! preg_match('/[^0-9]/', $value) && $length <= $parameters[0];
+        return ! preg_match('/[^0-9]/', (string) $value) && $length <= $parameters[0];
     }
 
     /**
@@ -1809,7 +1809,7 @@ public function validateMinDigits($attribute, $value, $parameters)
 
         $length = strlen((string) $value);
 
-        return ! preg_match('/[^0-9]/', $value) && $length >= $parameters[0];
+        return ! preg_match('/[^0-9]/', (string) $value) && $length >= $parameters[0];
     }
 
     /**
diff --git a/tests/Validation/ValidationValidatorTest.php b/tests/Validation/ValidationValidatorTest.php
index a862b522f24d..b781c449fc1a 100755
--- a/tests/Validation/ValidationValidatorTest.php
+++ b/tests/Validation/ValidationValidatorTest.php
@@ -3256,6 +3256,12 @@ public function testValidateMaxDigitsDoesNotThrowOnNonStringValue()
         $trans = $this->getIlluminateArrayTranslator();
         $v = new Validator($trans, ['x' => ['array']], ['x' => 'max_digits:5']);
         $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['x' => 123], ['x' => 'max_digits:5']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['x' => 123456], ['x' => 'max_digits:5']);
+        $this->assertFalse($v->passes());
     }
 
     public function testValidateMinDigitsDoesNotThrowOnNonStringValue()
@@ -3263,6 +3269,12 @@ public function testValidateMinDigitsDoesNotThrowOnNonStringValue()
         $trans = $this->getIlluminateArrayTranslator();
         $v = new Validator($trans, ['x' => ['array']], ['x' => 'min_digits:1']);
         $this->assertFalse($v->passes());
+
+        $v = new Validator($trans, ['x' => 123], ['x' => 'min_digits:2']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['x' => 1], ['x' => 'min_digits:2']);
+        $this->assertFalse($v->passes());
     }
 
     public function testValidateDoesntStartWith()
@@ -3718,6 +3730,12 @@ public function testValidateDecimal()
         $this->assertTrue($v->passes());
         $v = new Validator($trans, ['foo' => '123.34'], ['foo' => 'Decimal:0,2']);
         $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => 123], ['foo' => 'Decimal:0']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['foo' => 1.23], ['foo' => 'Decimal:0,3']);
+        $this->assertTrue($v->passes());
     }
 
     public function testValidateInt()