diff --git a/composer.json b/composer.json
index 28f75703..fbcb11c6 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
     "stof/doctrine-extensions-bundle": "^1.3",
     "symfony/asset": "4.4.*",
     "symfony/console": "4.4.*",
-    "symfony/dotenv": "4.4.*",
+    "symfony/dotenv": "5.3.*",
     "symfony/flex": "^1.3.1",
     "symfony/framework-bundle": "^4.4",
     "symfony/monolog-bundle": "3.7.*",
diff --git a/composer.lock b/composer.lock
index f0c0c7f0..f2918297 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": "2ef1d463b5e6b6fcd0bed715f53f5467",
+    "content-hash": "ddb597f7b1929afb77735448d59d0f2c",
     "packages": [
         {
             "name": "behat/transliterator",
@@ -4760,6 +4760,73 @@
             ],
             "time": "2021-07-23T15:41:52+00:00"
         },
+        {
+            "name": "symfony/deprecation-contracts",
+            "version": "v2.4.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/deprecation-contracts.git",
+                "reference": "5f38c8804a9e97d23e0c8d63341088cd8a22d627"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/deprecation-contracts/zipball/5f38c8804a9e97d23e0c8d63341088cd8a22d627",
+                "reference": "5f38c8804a9e97d23e0c8d63341088cd8a22d627",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "2.4-dev"
+                },
+                "thanks": {
+                    "name": "symfony/contracts",
+                    "url": "https://github.com/symfony/contracts"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "function.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "A generic function and convention to trigger deprecation notices",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/deprecation-contracts/tree/v2.4.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-03-23T23:28:01+00:00"
+        },
         {
             "name": "symfony/doctrine-bridge",
             "version": "v4.4.27",
@@ -4868,23 +4935,24 @@
         },
         {
             "name": "symfony/dotenv",
-            "version": "v4.4.29",
+            "version": "v5.3.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dotenv.git",
-                "reference": "2b078eff6268875f4639cf16e48e321982c671bb"
+                "reference": "12888c9c46ac750ec5c1381db5bf3d534e7d70cb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/dotenv/zipball/2b078eff6268875f4639cf16e48e321982c671bb",
-                "reference": "2b078eff6268875f4639cf16e48e321982c671bb",
+                "url": "https://api.github.com/repos/symfony/dotenv/zipball/12888c9c46ac750ec5c1381db5bf3d534e7d70cb",
+                "reference": "12888c9c46ac750ec5c1381db5bf3d534e7d70cb",
                 "shasum": ""
             },
             "require": {
-                "php": ">=7.1.3"
+                "php": ">=7.2.5",
+                "symfony/deprecation-contracts": "^2.1"
             },
             "require-dev": {
-                "symfony/process": "^3.4.2|^4.0|^5.0"
+                "symfony/process": "^4.4|^5.0"
             },
             "type": "library",
             "autoload": {
@@ -4917,7 +4985,7 @@
                 "environment"
             ],
             "support": {
-                "source": "https://github.com/symfony/dotenv/tree/v4.4.29"
+                "source": "https://github.com/symfony/dotenv/tree/v5.3.8"
             },
             "funding": [
                 {
@@ -4933,7 +5001,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-07-27T16:19:30+00:00"
+            "time": "2021-07-29T06:18:06+00:00"
         },
         {
             "name": "symfony/error-handler",
@@ -10018,5 +10086,5 @@
         "ext-pdo": "*"
     },
     "platform-dev": [],
-    "plugin-api-version": "2.0.0"
+    "plugin-api-version": "2.1.0"
 }