diff --git a/backend/composer.json b/backend/composer.json
index 963a5a9..ff063bf 100644
--- a/backend/composer.json
+++ b/backend/composer.json
@@ -36,7 +36,7 @@
         "symfony/serializer": "7.3.*",
         "symfony/twig-bundle": "7.3.*",
         "symfony/validator": "7.3.*",
-        "symfony/yaml": "7.3.*"
+        "symfony/yaml": "7.4.*"
     },
     "config": {
         "allow-plugins": {
diff --git a/backend/composer.lock b/backend/composer.lock
index 644d0f4..8b7b455 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": "62463b2cabd037b983c4494a7d31b913",
+    "content-hash": "83ec890902f4d161fd623dfac8228867",
     "packages": [
         {
             "name": "api-platform/doctrine-common",
@@ -4160,16 +4160,16 @@
         },
         {
             "name": "symfony/deprecation-contracts",
-            "version": "v3.6.0",
+            "version": "v3.7.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/deprecation-contracts.git",
-                "reference": "63afe740e99a13ba87ec199bb07bbdee937a5b62"
+                "reference": "50f59d1f3ca46d41ac911f97a78626b6756af35b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/deprecation-contracts/zipball/63afe740e99a13ba87ec199bb07bbdee937a5b62",
-                "reference": "63afe740e99a13ba87ec199bb07bbdee937a5b62",
+                "url": "https://api.github.com/repos/symfony/deprecation-contracts/zipball/50f59d1f3ca46d41ac911f97a78626b6756af35b",
+                "reference": "50f59d1f3ca46d41ac911f97a78626b6756af35b",
                 "shasum": ""
             },
             "require": {
@@ -4182,7 +4182,7 @@
                     "name": "symfony/contracts"
                 },
                 "branch-alias": {
-                    "dev-main": "3.6-dev"
+                    "dev-main": "3.7-dev"
                 }
             },
             "autoload": {
@@ -4207,7 +4207,7 @@
             "description": "A generic function and convention to trigger deprecation notices",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/deprecation-contracts/tree/v3.6.0"
+                "source": "https://github.com/symfony/deprecation-contracts/tree/v3.7.0"
             },
             "funding": [
                 {
@@ -4218,12 +4218,16 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-09-25T14:21:43+00:00"
+            "time": "2026-04-13T15:52:40+00:00"
         },
         {
             "name": "symfony/doctrine-bridge",
@@ -8448,28 +8452,28 @@
         },
         {
             "name": "symfony/yaml",
-            "version": "v7.3.5",
+            "version": "v7.4.12",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "90208e2fc6f68f613eae7ca25a2458a931b1bacc"
+                "reference": "8b6952b56ca6417f25f7a65758cadd0ce02edc51"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/90208e2fc6f68f613eae7ca25a2458a931b1bacc",
-                "reference": "90208e2fc6f68f613eae7ca25a2458a931b1bacc",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/8b6952b56ca6417f25f7a65758cadd0ce02edc51",
+                "reference": "8b6952b56ca6417f25f7a65758cadd0ce02edc51",
                 "shasum": ""
             },
             "require": {
                 "php": ">=8.2",
-                "symfony/deprecation-contracts": "^2.5|^3.0",
+                "symfony/deprecation-contracts": "^2.5|^3",
                 "symfony/polyfill-ctype": "^1.8"
             },
             "conflict": {
                 "symfony/console": "<6.4"
             },
             "require-dev": {
-                "symfony/console": "^6.4|^7.0"
+                "symfony/console": "^6.4|^7.0|^8.0"
             },
             "bin": [
                 "Resources/bin/yaml-lint"
@@ -8500,7 +8504,7 @@
             "description": "Loads and dumps YAML files",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/yaml/tree/v7.3.5"
+                "source": "https://github.com/symfony/yaml/tree/v7.4.12"
             },
             "funding": [
                 {
@@ -8520,7 +8524,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-09-27T09:00:46+00:00"
+            "time": "2026-05-20T07:20:23+00:00"
         },
         {
             "name": "twig/twig",
@@ -10975,5 +10979,5 @@
         "ext-iconv": "*"
     },
     "platform-dev": {},
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.9.0"
 }