diff --git a/src/Illuminate/Collections/Arr.php b/src/Illuminate/Collections/Arr.php
index fe40f398a5f1..be75b1dad85e 100644
--- a/src/Illuminate/Collections/Arr.php
+++ b/src/Illuminate/Collections/Arr.php
@@ -409,7 +409,7 @@ public static function only($array, $keys)
      * Pluck an array of values from an array.
      *
      * @param  iterable  $array
-     * @param  string|array  $value
+     * @param  string|array|int|null  $value
      * @param  string|array|null  $key
      * @return array
      */
diff --git a/src/Illuminate/Collections/Collection.php b/src/Illuminate/Collections/Collection.php
index 5edee040f47e..d0a7a1d57e5d 100644
--- a/src/Illuminate/Collections/Collection.php
+++ b/src/Illuminate/Collections/Collection.php
@@ -608,7 +608,7 @@ public function last(callable $callback = null, $default = null)
     /**
      * Get the values of a given key.
      *
-     * @param  string|array  $value
+     * @param  string|array|int|null  $value
      * @param  string|null  $key
      * @return static
      */