diff --git a/backend/composer.json b/backend/composer.json
index 9089a07..34284d9 100644
--- a/backend/composer.json
+++ b/backend/composer.json
@@ -11,6 +11,7 @@
     "require": {
         "php": "^8.2",
         "laravel/framework": "^12.0",
+        "laravel/sanctum": "^4.2",
         "laravel/tinker": "^2.10.1"
     },
     "require-dev": {
@@ -75,4 +76,4 @@
     },
     "minimum-stability": "stable",
     "prefer-stable": true
-}
\ No newline at end of file
+}
diff --git a/backend/composer.lock b/backend/composer.lock
index ae4585a..a4d9098 100644
--- a/backend/composer.lock
+++ b/backend/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": "c514d8f7b9fc5970bdd94287905ef584",
+    "content-hash": "8f387a0734f3bf879214e4aa2fca6e2f",
     "packages": [
         {
             "name": "brick/math",
@@ -1332,6 +1332,70 @@
             },
             "time": "2025-09-19T13:47:56+00:00"
         },
+        {
+            "name": "laravel/sanctum",
+            "version": "v4.2.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/laravel/sanctum.git",
+                "reference": "fd6df4f79f48a72992e8d29a9c0ee25422a0d677"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/laravel/sanctum/zipball/fd6df4f79f48a72992e8d29a9c0ee25422a0d677",
+                "reference": "fd6df4f79f48a72992e8d29a9c0ee25422a0d677",
+                "shasum": ""
+            },
+            "require": {
+                "ext-json": "*",
+                "illuminate/console": "^11.0|^12.0",
+                "illuminate/contracts": "^11.0|^12.0",
+                "illuminate/database": "^11.0|^12.0",
+                "illuminate/support": "^11.0|^12.0",
+                "php": "^8.2",
+                "symfony/console": "^7.0"
+            },
+            "require-dev": {
+                "mockery/mockery": "^1.6",
+                "orchestra/testbench": "^9.0|^10.0",
+                "phpstan/phpstan": "^1.10",
+                "phpunit/phpunit": "^11.3"
+            },
+            "type": "library",
+            "extra": {
+                "laravel": {
+                    "providers": [
+                        "Laravel\\Sanctum\\SanctumServiceProvider"
+                    ]
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Laravel\\Sanctum\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Taylor Otwell",
+                    "email": "taylor@laravel.com"
+                }
+            ],
+            "description": "Laravel Sanctum provides a featherweight authentication system for SPAs and simple APIs.",
+            "keywords": [
+                "auth",
+                "laravel",
+                "sanctum"
+            ],
+            "support": {
+                "issues": "https://github.com/laravel/sanctum/issues",
+                "source": "https://github.com/laravel/sanctum"
+            },
+            "time": "2025-07-09T19:45:24+00:00"
+        },
         {
             "name": "laravel/serializable-closure",
             "version": "v2.0.5",
diff --git a/docker-compose.dev.yml b/docker-compose.dev.yml
index edda3f3..fb6c208 100644
--- a/docker-compose.dev.yml
+++ b/docker-compose.dev.yml
@@ -9,8 +9,8 @@ services:
     ports:
       - "5173:5173"
     volumes:
-      - ./frontend:/app:Z
-      - node_modules:/app/node_modules
+      - ./frontend:/app:z
+      - node_modules:/app/node_modules:Z
     environment:
       - NODE_ENV=development
     networks:
@@ -24,8 +24,8 @@ services:
     ports:
       - "8000:8000"
     volumes:
-      - ./backend:/var/www/html:Z
-      - vendor:/var/www/html/vendor
+      - ./backend:/var/www/html:z
+      - vendor:/var/www/html/vendor:Z
     env_file:
       - .env.local
     depends_on:
@@ -45,7 +45,7 @@ services:
       MYSQL_USER: ${DB_USERNAME:-trip_user}
       MYSQL_PASSWORD: ${DB_PASSWORD:-secret}
     volumes:
-      - db-data:/var/lib/mysql
+      - db-data:/var/lib/mysql:Z
     networks:
       - trip-planner-network
 
@@ -55,7 +55,7 @@ services:
     ports:
       - "6379:6379"
     volumes:
-      - redis-data:/data
+      - redis-data:/data:Z
     networks:
       - trip-planner-network