diff --git a/src/Utility/Assert.php b/src/Utility/Assert.php
index 26163ce5..e030704c 100644
--- a/src/Utility/Assert.php
+++ b/src/Utility/Assert.php
@@ -1706,7 +1706,7 @@ public static function allNullOrImplementsInterface($value, $interface, $message
      *
      * @throws InvalidArgumentException
      */
-    public static function allNullOrInArray($value, $values, $message = ''): void
+    public static function allNullOrInArray($value, array $values, $message = ''): void
     {
         self::isIterable($value);
 
@@ -1840,7 +1840,7 @@ public static function allNullOrIpv6($value, $message = ''): void
      *
      * @throws InvalidArgumentException
      */
-    public static function allNullOrIsAnyOf($value, $classes, $message = ''): void
+    public static function allNullOrIsAnyOf($value, array $classes, $message = ''): void
     {
         self::isIterable($value);
 
@@ -2019,7 +2019,7 @@ public static function allNullOrIsInstanceOf($value, $class, $message = ''): voi
      *
      * @throws InvalidArgumentException
      */
-    public static function allNullOrIsInstanceOfAny($value, $classes, $message = ''): void
+    public static function allNullOrIsInstanceOfAny($value, array $classes, $message = ''): void
     {
         self::isIterable($value);
 
@@ -2733,7 +2733,7 @@ public static function allNullOrObject($value, $message = ''): void
      *
      * @throws InvalidArgumentException
      */
-    public static function allNullOrOneOf($value, $values, $message = ''): void
+    public static function allNullOrOneOf($value, array $values, $message = ''): void
     {
         self::isIterable($value);
 
@@ -5391,7 +5391,7 @@ public static function nullOrImplementsInterface($value, $interface, $message =
      *
      * @throws InvalidArgumentException
      */
-    public static function nullOrInArray($value, $values, $message = ''): void
+    public static function nullOrInArray($value, array $values, $message = ''): void
     {
         if (null !== $value) {
             self::inArray($value, $values, $message);
@@ -5497,7 +5497,7 @@ public static function nullOrIpv6($value, $message = ''): void
      *
      * @throws InvalidArgumentException
      */
-    public static function nullOrIsAnyOf($value, $classes, $message = ''): void
+    public static function nullOrIsAnyOf($value, array $classes, $message = ''): void
     {
         if (null !== $value) {
             self::isAnyOf($value, $classes, $message);
@@ -5644,7 +5644,7 @@ public static function nullOrIsInstanceOf($value, $class, $message = ''): void
      *
      * @throws InvalidArgumentException
      */
-    public static function nullOrIsInstanceOfAny($value, $classes, $message = ''): void
+    public static function nullOrIsInstanceOfAny($value, array $classes, $message = ''): void
     {
         if (null !== $value) {
             self::isInstanceOfAny($value, $classes, $message);
@@ -6210,7 +6210,7 @@ public static function nullOrObject($value, $message = ''): void
      *
      * @throws InvalidArgumentException
      */
-    public static function nullOrOneOf($value, $values, $message = ''): void
+    public static function nullOrOneOf($value, array $values, $message = ''): void
     {
         if (null !== $value) {
             self::oneOf($value, $values, $message);