diff --git a/src/Assert.php b/src/Assert.php
index 0e0e1d34..167f2d0c 100644
--- a/src/Assert.php
+++ b/src/Assert.php
@@ -709,7 +709,7 @@ public static function ipv6($value, $message = '')
     /**
      * @psalm-pure
      *
-     * @param string $value
+     * @param mixed  $value
      * @param string $message
      *
      * @throws InvalidArgumentException
@@ -1023,7 +1023,7 @@ public static function notContains($value, $subString, $message = '')
     /**
      * @psalm-pure
      *
-     * @param string $value
+     * @param mixed $value
      * @param string $message
      *
      * @throws InvalidArgumentException
diff --git a/src/Mixin.php b/src/Mixin.php
index 7664f971..613d25cf 100644
--- a/src/Mixin.php
+++ b/src/Mixin.php
@@ -728,8 +728,8 @@ public static function allIpv6($value, $message = '');
     /**
      * @psalm-pure
      *
-     * @param null|string $value
-     * @param string      $message
+     * @param mixed  $value
+     * @param string $message
      *
      * @throws InvalidArgumentException
      */
@@ -738,8 +738,8 @@ public static function nullOrUrl($value, $message = '');
     /**
      * @psalm-pure
      *
-     * @param iterable<string> $value
-     * @param string           $message
+     * @param mixed  $value
+     * @param string $message
      *
      * @throws InvalidArgumentException
      */
@@ -1060,8 +1060,8 @@ public static function allNotContains($value, $subString, $message = '');
     /**
      * @psalm-pure
      *
-     * @param null|string $value
-     * @param string      $message
+     * @param mixed  $value
+     * @param string $message
      *
      * @throws InvalidArgumentException
      */
@@ -1070,8 +1070,8 @@ public static function nullOrNotWhitespaceOnly($value, $message = '');
     /**
      * @psalm-pure
      *
-     * @param iterable<string> $value
-     * @param string           $message
+     * @param mixed  $value
+     * @param string $message
      *
      * @throws InvalidArgumentException
      */