diff --git a/src/HelpersServiceProvider.php b/src/HelpersServiceProvider.php
index fe77fe2..50564f9 100755
--- a/src/HelpersServiceProvider.php
+++ b/src/HelpersServiceProvider.php
@@ -67,7 +67,6 @@ protected function extendValidator(): void
         });
 
         Validator::extend('list_exists', function ($attribute, $value, $parameters) {
-
             if (count($parameters) < 1) {
                 return false;
             }
@@ -76,12 +75,17 @@ protected function extendValidator(): void
             $keyField = Arr::get($parameters, 1, 'id');
 
             if (!empty(Arr::get($parameters, 2))) {
-                $value = collect($value)->pluck(Arr::get($parameters, 2));
+                $value = Arr::pluck($value, Arr::get($parameters, 2));
             }
 
-            return DB::table($table)
+            $value = array_unique($value);
+
+            $existingValueCount = DB::table($table)
                 ->whereIn($keyField, $value)
-                ->exists();
+                ->distinct()
+                ->count($keyField);
+
+            return $existingValueCount === count($value);
         });
     }
 
diff --git a/tests/ValidatorTest.php b/tests/ValidatorTest.php
index 91cbb90..e0282a8 100644
--- a/tests/ValidatorTest.php
+++ b/tests/ValidatorTest.php
@@ -67,7 +67,7 @@ public function testUniqueExceptOfAuthorizedUserFail()
 
     public function testListExists()
     {
-        $this->mockListExists(true);
+        $this->mockListExists([1, 2, 3]);
 
         $validator = Validator::make(
             ['ids' => [1, 2, 3]],
@@ -77,9 +77,22 @@ public function testListExists()
         $this->assertTrue($validator->passes());
     }
 
+    public function testListExistsIfDuplicateValues()
+    {
+        $this->mockListExists([1, 2, 3]);
+
+        $validator = Validator::make([
+            'ids' => [1, 2, 3, 3],
+        ], [
+            'ids' => 'list_exists:clients,user_id',
+        ]);
+
+        $this->assertTrue($validator->passes());
+    }
+
     public function testListExistsByArray()
     {
-        $this->mockListExists(true);
+        $this->mockListExists([1, 2, 3]);
 
         $validator = Validator::make(
             [
@@ -108,7 +121,7 @@ public function testListExistsByArray()
 
     public function testListExistsFailedValidation()
     {
-        $this->mockListExists(false);
+        $this->mockListExists([1, 2]);
 
         $validator = Validator::make(
             ['ids' => [1, 2, 3]],
diff --git a/tests/support/Traits/SqlMockTrait.php b/tests/support/Traits/SqlMockTrait.php
index 59ec754..8016121 100644
--- a/tests/support/Traits/SqlMockTrait.php
+++ b/tests/support/Traits/SqlMockTrait.php
@@ -432,14 +432,14 @@ protected function mockExistsUsersExceptAuthorizedByArray(
     }
 
     protected function mockListExists(
-        bool $isExist,
+        array $result,
         string $table = 'clients',
         string $keyField = 'user_id',
     ): void {
-        $this->mockSelectExists(
-            "select exists(select * from \"{$table}\" where \"{$keyField}\" in (?, ?, ?)) as \"exists\"",
-            $isExist,
-            [1, 2, 3]
+        $this->mockSelect(
+            query: "select count(distinct \"{$keyField}\") as aggregate from \"{$table}\" where \"{$keyField}\" in (?, ?, ?)",
+            result: [[ 'aggregate' => count($result) ]],
+            bindings: [1, 2, 3],
         );
     }