diff --git a/backend/composer.json b/backend/composer.json
index 86bafc90..6ef5c8f5 100644
--- a/backend/composer.json
+++ b/backend/composer.json
@@ -1,12 +1,12 @@
 {
     "require": {
         "vlucas/phpdotenv": "^5.6",
-        "firebase/php-jwt": "^6.0"
+        "firebase/php-jwt": "^7.0"
     },
     "prefer-stable": true,
     "config": {
-        "audit": {
-            "ignore": ["PKSA-y2cr-5h3j-g3ys"]
+        "platform": {
+            "php": "8.2"
         }
     }
 }
diff --git a/backend/composer.lock b/backend/composer.lock
index 9128a4ae..ebbe5957 100644
--- a/backend/composer.lock
+++ b/backend/composer.lock
@@ -4,20 +4,20 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "e192df06759c90826eeb518a1ea5f0c8",
+    "content-hash": "e5589fd14ce83adda13b8b9cebed44fa",
     "packages": [
         {
             "name": "firebase/php-jwt",
-            "version": "v6.11.1",
+            "version": "v7.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/googleapis/php-jwt.git",
-                "reference": "d1e91ecf8c598d073d0995afa8cd5c75c6e19e66"
+                "reference": "b374a5d1a4f1f67fadc2165cdb284645945e2fc0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/googleapis/php-jwt/zipball/d1e91ecf8c598d073d0995afa8cd5c75c6e19e66",
-                "reference": "d1e91ecf8c598d073d0995afa8cd5c75c6e19e66",
+                "url": "https://api.github.com/repos/googleapis/php-jwt/zipball/b374a5d1a4f1f67fadc2165cdb284645945e2fc0",
+                "reference": "b374a5d1a4f1f67fadc2165cdb284645945e2fc0",
                 "shasum": ""
             },
             "require": {
@@ -25,6 +25,8 @@
             },
             "require-dev": {
                 "guzzlehttp/guzzle": "^7.4",
+                "phpfastcache/phpfastcache": "^9.2",
+                "phpseclib/phpseclib": "~3.0",
                 "phpspec/prophecy-phpunit": "^2.0",
                 "phpunit/phpunit": "^9.5",
                 "psr/cache": "^2.0||^3.0",
@@ -33,7 +35,8 @@
             },
             "suggest": {
                 "ext-sodium": "Support EdDSA (Ed25519) signatures",
-                "paragonie/sodium_compat": "Support EdDSA (Ed25519) signatures when libsodium is not present"
+                "paragonie/sodium_compat": "Support EdDSA (Ed25519) signatures when libsodium is not present",
+                "phpseclib/phpseclib": "Support PS256 (RSASSA-PSS) signatures"
             },
             "type": "library",
             "autoload": {
@@ -58,16 +61,16 @@
                 }
             ],
             "description": "A simple library to encode and decode JSON Web Tokens (JWT) in PHP. Should conform to the current spec.",
-            "homepage": "https://github.com/firebase/php-jwt",
+            "homepage": "https://github.com/googleapis/php-jwt",
             "keywords": [
                 "jwt",
                 "php"
             ],
             "support": {
                 "issues": "https://github.com/googleapis/php-jwt/issues",
-                "source": "https://github.com/googleapis/php-jwt/tree/v6.11.1"
+                "source": "https://github.com/googleapis/php-jwt/tree/v7.1.0"
             },
-            "time": "2025-04-09T20:32:01+00:00"
+            "time": "2026-06-11T17:54:14+00:00"
         },
         {
             "name": "graham-campbell/result-type",
@@ -460,16 +463,16 @@
         },
         {
             "name": "vlucas/phpdotenv",
-            "version": "v5.6.3",
+            "version": "v5.6.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/vlucas/phpdotenv.git",
-                "reference": "955e7815d677a3eaa7075231212f2110983adecc"
+                "reference": "416df702837983f8d5ff48c9c3fee4f5f57b980b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/vlucas/phpdotenv/zipball/955e7815d677a3eaa7075231212f2110983adecc",
-                "reference": "955e7815d677a3eaa7075231212f2110983adecc",
+                "url": "https://api.github.com/repos/vlucas/phpdotenv/zipball/416df702837983f8d5ff48c9c3fee4f5f57b980b",
+                "reference": "416df702837983f8d5ff48c9c3fee4f5f57b980b",
                 "shasum": ""
             },
             "require": {
@@ -528,7 +531,7 @@
             ],
             "support": {
                 "issues": "https://github.com/vlucas/phpdotenv/issues",
-                "source": "https://github.com/vlucas/phpdotenv/tree/v5.6.3"
+                "source": "https://github.com/vlucas/phpdotenv/tree/v5.6.4"
             },
             "funding": [
                 {
@@ -540,7 +543,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-12-27T19:49:13+00:00"
+            "time": "2026-07-06T19:11:50+00:00"
         }
     ],
     "packages-dev": [],
@@ -551,5 +554,8 @@
     "prefer-lowest": false,
     "platform": {},
     "platform-dev": {},
+    "platform-overrides": {
+        "php": "8.2"
+    },
     "plugin-api-version": "2.9.0"
 }