diff --git a/composer.json b/composer.json
index c3305982..db45def7 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
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     "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": "3.6.*",
diff --git a/composer.lock b/composer.lock
index 166676c2..de790835 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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         "This file is @generated automatically"
     ],
-    "content-hash": "4b341e326688d4e2a3f2395623dea5e9",
+    "content-hash": "b4ecd61e98fc43e3cbb17c10cfe4108f",
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         {
             "name": "behat/transliterator",
@@ -4800,6 +4800,73 @@
             ],
             "time": "2021-05-16T09:52:47+00:00"
         },
+        {
+            "name": "symfony/deprecation-contracts",
+            "version": "v2.4.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/deprecation-contracts.git",
+                "reference": "5f38c8804a9e97d23e0c8d63341088cd8a22d627"
+            },
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+                "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": "v4.4.24",
@@ -4907,23 +4974,25 @@
         },
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-            "version": "v4.4.20",
+            "version": "v5.3.4",
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                 "url": "https://github.com/symfony/dotenv.git",
-                "reference": "4952e5ce9e6df3d737b9e9c337bddf781180a213"
+                "reference": "f0fcb3406dafc7730e3df7add94ca287d682b46b"
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-                "reference": "4952e5ce9e6df3d737b9e9c337bddf781180a213",
+                "url": "https://api.github.com/repos/symfony/dotenv/zipball/f0fcb3406dafc7730e3df7add94ca287d682b46b",
+                "reference": "f0fcb3406dafc7730e3df7add94ca287d682b46b",
                 "shasum": ""
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             "require": {
-                "php": ">=7.1.3"
+                "php": ">=7.2.5",
+                "symfony/deprecation-contracts": "^2.1",
+                "symfony/polyfill-php80": "^1.16"
             },
             "require-dev": {
-                "symfony/process": "^3.4.2|^4.0|^5.0"
+                "symfony/process": "^4.4|^5.0"
             },
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             "autoload": {
@@ -4956,7 +5025,7 @@
                 "environment"
             ],
             "support": {
-                "source": "https://github.com/symfony/dotenv/tree/v4.4.20"
+                "source": "https://github.com/symfony/dotenv/tree/v5.3.4"
             },
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@@ -4972,7 +5041,7 @@
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                 }
             ],
-            "time": "2021-01-27T09:09:26+00:00"
+            "time": "2021-07-21T12:38:00+00:00"
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         {
             "name": "symfony/error-handler",
@@ -7077,16 +7146,16 @@
         },
         {
             "name": "symfony/polyfill-php80",
-            "version": "v1.22.1",
+            "version": "v1.23.0",
             "source": {
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                 "url": "https://github.com/symfony/polyfill-php80.git",
-                "reference": "dc3063ba22c2a1fd2f45ed856374d79114998f91"
+                "reference": "eca0bf41ed421bed1b57c4958bab16aa86b757d0"
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-                "reference": "dc3063ba22c2a1fd2f45ed856374d79114998f91",
+                "url": "https://api.github.com/repos/symfony/polyfill-php80/zipball/eca0bf41ed421bed1b57c4958bab16aa86b757d0",
+                "reference": "eca0bf41ed421bed1b57c4958bab16aa86b757d0",
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@@ -7095,7 +7164,7 @@
             "type": "library",
             "extra": {
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+                    "dev-main": "1.23-dev"
                 },
                 "thanks": {
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@@ -7140,7 +7209,7 @@
                 "shim"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-php80/tree/v1.22.1"
+                "source": "https://github.com/symfony/polyfill-php80/tree/v1.23.0"
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@@ -7156,7 +7225,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-01-07T16:49:33+00:00"
+            "time": "2021-02-19T12:13:01+00:00"
         },
         {
             "name": "symfony/property-access",
@@ -9949,5 +10018,5 @@
         "ext-pdo": "*"
     },
     "platform-dev": [],
-    "plugin-api-version": "2.0.0"
+    "plugin-api-version": "2.1.0"
 }