diff --git a/app/Exceptions/Handler.php b/app/Exceptions/Handler.php
new file mode 100644
index 0000000..3bffe95
--- /dev/null
+++ b/app/Exceptions/Handler.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Exceptions;
+
+use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
+use Throwable;
+use Illuminate\Support\Facades\Http;
+
+class Handler extends ExceptionHandler
+{
+    public function report(Throwable $e): void
+    {
+        if (app()->environment('local') || app()->environment('production')) {
+            $this->sendSlackException($e);
+        }
+
+        parent::report($e); // 로그는 그대로
+    }
+
+    protected function sendSlackException(Throwable $e): void
+    {
+        try {
+            $url = env('LOG_SLACK_WEBHOOK_URL');
+
+            if (!$url) return;
+
+            Http::post($url, [
+                'text' => "*🚨 Laravel 예외 발생!*\n" .
+                    "• 메시지: `{$e->getMessage()}`\n" .
+                    "• 위치: `{$e->getFile()}:{$e->getLine()}`\n" .
+                    "• 시간: " . now()->toDateTimeString()
+            ]);
+        } catch (Throwable $ex) {
+            logger()->error('슬랙 전송 실패', ['message' => $ex->getMessage()]);
+        }
+    }
+}
diff --git a/bootstrap/app.php b/bootstrap/app.php
index 205d5ef..7d73d90 100644
--- a/bootstrap/app.php
+++ b/bootstrap/app.php
@@ -1,14 +1,18 @@
 <?php
 
 use Illuminate\Foundation\Application;
-use Illuminate\Foundation\Configuration\Exceptions;
 use Illuminate\Foundation\Configuration\Middleware;
+use Illuminate\Foundation\Configuration\Exceptions;
+
+use Illuminate\Contracts\Debug\ExceptionHandler;
+use App\Exceptions\Handler;
+
 use App\Http\Middleware\CorsMiddleware;
 use App\Http\Middleware\ApiKeyMiddleware;
 use App\Http\Middleware\CheckSwaggerAuth;
 use App\Http\Middleware\CheckPermission;
 
-return Application::configure(basePath: dirname(__DIR__))
+$app = Application::configure(basePath: dirname(__DIR__))
     ->withRouting(
         web: __DIR__.'/../routes/web.php',
         api: __DIR__.'/../routes/api.php',
@@ -16,18 +20,20 @@
         health: '/up',
     )
     ->withMiddleware(function (Middleware $middleware) {
-
-        // CORS 미들웨어 추가
         $middleware->append(CorsMiddleware::class);
 
         $middleware->alias([
-            'auth.apikey' => ApiKeyMiddleware::class, // Api Key 인증 미들웨어
-            'swagger.auth' => CheckSwaggerAuth::class, // Swagger 인증 미들웨어
-            'permission' => CheckPermission::class, // 권한확인 미들웨어
+            'auth.apikey' => ApiKeyMiddleware::class,
+            'swagger.auth' => CheckSwaggerAuth::class,
+            'permission' => CheckPermission::class,
         ]);
-
     })
     ->withExceptions(function (Exceptions $exceptions) {
-        //
-    })->create();
+        // 이건 비워두세요
+    })
+    ->create();
 
+// 🔥 핵심: create() 이후에 반드시 등록
+$app->singleton(ExceptionHandler::class, Handler::class);
+
+return $app;
diff --git a/composer.json b/composer.json
index b55f91c..fc1e8e1 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,6 @@
         "laravel/pint": "^1.13",
         "laravel/sail": "^1.41",
         "mockery/mockery": "^1.6",
-        "nunomaduro/collision": "^8.6",
         "phpunit/phpunit": "^11.5.3"
     },
     "autoload": {
diff --git a/composer.lock b/composer.lock
index 737f63b..99f7b24 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "58ca6a824fd96845d637d869a136b0b0",
+    "content-hash": "c85aa435b860ec1190921846b8891208",
     "packages": [
         {
             "name": "bacon/bacon-qr-code",
@@ -6827,77 +6827,6 @@
             },
             "time": "2024-11-21T13:46:39+00:00"
         },
-        {
-            "name": "filp/whoops",
-            "version": "2.18.3",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/filp/whoops.git",
-                "reference": "59a123a3d459c5a23055802237cb317f609867e5"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/filp/whoops/zipball/59a123a3d459c5a23055802237cb317f609867e5",
-                "reference": "59a123a3d459c5a23055802237cb317f609867e5",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^7.1 || ^8.0",
-                "psr/log": "^1.0.1 || ^2.0 || ^3.0"
-            },
-            "require-dev": {
-                "mockery/mockery": "^1.0",
-                "phpunit/phpunit": "^7.5.20 || ^8.5.8 || ^9.3.3",
-                "symfony/var-dumper": "^4.0 || ^5.0"
-            },
-            "suggest": {
-                "symfony/var-dumper": "Pretty print complex values better with var-dumper available",
-                "whoops/soap": "Formats errors as SOAP responses"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "2.7-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Whoops\\": "src/Whoops/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Filipe Dobreira",
-                    "homepage": "https://github.com/filp",
-                    "role": "Developer"
-                }
-            ],
-            "description": "php error handling for cool kids",
-            "homepage": "https://filp.github.io/whoops/",
-            "keywords": [
-                "error",
-                "exception",
-                "handling",
-                "library",
-                "throwable",
-                "whoops"
-            ],
-            "support": {
-                "issues": "https://github.com/filp/whoops/issues",
-                "source": "https://github.com/filp/whoops/tree/2.18.3"
-            },
-            "funding": [
-                {
-                    "url": "https://github.com/denis-sokolov",
-                    "type": "github"
-                }
-            ],
-            "time": "2025-06-16T00:02:10+00:00"
-        },
         {
             "name": "hamcrest/hamcrest-php",
             "version": "v2.1.1",
@@ -7303,105 +7232,6 @@
             ],
             "time": "2025-07-05T12:25:42+00:00"
         },
-        {
-            "name": "nunomaduro/collision",
-            "version": "v8.8.2",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/nunomaduro/collision.git",
-                "reference": "60207965f9b7b7a4ce15a0f75d57f9dadb105bdb"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/nunomaduro/collision/zipball/60207965f9b7b7a4ce15a0f75d57f9dadb105bdb",
-                "reference": "60207965f9b7b7a4ce15a0f75d57f9dadb105bdb",
-                "shasum": ""
-            },
-            "require": {
-                "filp/whoops": "^2.18.1",
-                "nunomaduro/termwind": "^2.3.1",
-                "php": "^8.2.0",
-                "symfony/console": "^7.3.0"
-            },
-            "conflict": {
-                "laravel/framework": "<11.44.2 || >=13.0.0",
-                "phpunit/phpunit": "<11.5.15 || >=13.0.0"
-            },
-            "require-dev": {
-                "brianium/paratest": "^7.8.3",
-                "larastan/larastan": "^3.4.2",
-                "laravel/framework": "^11.44.2 || ^12.18",
-                "laravel/pint": "^1.22.1",
-                "laravel/sail": "^1.43.1",
-                "laravel/sanctum": "^4.1.1",
-                "laravel/tinker": "^2.10.1",
-                "orchestra/testbench-core": "^9.12.0 || ^10.4",
-                "pestphp/pest": "^3.8.2",
-                "sebastian/environment": "^7.2.1 || ^8.0"
-            },
-            "type": "library",
-            "extra": {
-                "laravel": {
-                    "providers": [
-                        "NunoMaduro\\Collision\\Adapters\\Laravel\\CollisionServiceProvider"
-                    ]
-                },
-                "branch-alias": {
-                    "dev-8.x": "8.x-dev"
-                }
-            },
-            "autoload": {
-                "files": [
-                    "./src/Adapters/Phpunit/Autoload.php"
-                ],
-                "psr-4": {
-                    "NunoMaduro\\Collision\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Nuno Maduro",
-                    "email": "enunomaduro@gmail.com"
-                }
-            ],
-            "description": "Cli error handling for console/command-line PHP applications.",
-            "keywords": [
-                "artisan",
-                "cli",
-                "command-line",
-                "console",
-                "dev",
-                "error",
-                "handling",
-                "laravel",
-                "laravel-zero",
-                "php",
-                "symfony"
-            ],
-            "support": {
-                "issues": "https://github.com/nunomaduro/collision/issues",
-                "source": "https://github.com/nunomaduro/collision"
-            },
-            "funding": [
-                {
-                    "url": "https://www.paypal.com/paypalme/enunomaduro",
-                    "type": "custom"
-                },
-                {
-                    "url": "https://github.com/nunomaduro",
-                    "type": "github"
-                },
-                {
-                    "url": "https://www.patreon.com/nunomaduro",
-                    "type": "patreon"
-                }
-            ],
-            "time": "2025-06-25T02:12:12+00:00"
-        },
         {
             "name": "phar-io/manifest",
             "version": "2.0.4",
diff --git a/routes/api.php b/routes/api.php
index 1b561bf..238bbd5 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -9,6 +9,11 @@
 use App\Http\Controllers\Api\V1\FileController;
 use App\Http\Controllers\Api\V1\ProductController;
 
+// error test
+Route::get('/test-error', function () {
+    throw new \Exception('슬랙 전송 테스트 예외');
+});
+
 // V1 초기 개발
 Route::prefix('v1')->group(function () {