diff --git a/Symfony-API/composer.json b/Symfony-API/composer.json
index 33c5ee6..a63a8d2 100644
--- a/Symfony-API/composer.json
+++ b/Symfony-API/composer.json
@@ -5,7 +5,7 @@
         "php": "^7.1.3",
         "ext-ctype": "*",
         "ext-iconv": "*",
-        "doctrine/orm": "2.6",
+        "doctrine/orm": "~2.6",
         "openapi/server-bundle": "dev-master",
         "symfony/apache-pack": "^1.0",
         "symfony/console": "^4.2",
diff --git a/Symfony-API/composer.lock b/Symfony-API/composer.lock
index c036cc7..234fc15 100644
--- a/Symfony-API/composer.lock
+++ b/Symfony-API/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": "df7f31581ea5a556d4748ba447a4d335",
+    "content-hash": "bd3205d7d57b41e1236ea4033e014f28",
     "packages": [
         {
             "name": "doctrine/annotations",
@@ -990,34 +990,40 @@
         },
         {
             "name": "doctrine/orm",
-            "version": "v2.6.0",
+            "version": "v2.7.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/orm.git",
-                "reference": "374e7ace49d864dad8cddbc55346447c8a6a2083"
+                "reference": "d95e03ba660d50d785a9925f41927fef0ee553cf"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/orm/zipball/374e7ace49d864dad8cddbc55346447c8a6a2083",
-                "reference": "374e7ace49d864dad8cddbc55346447c8a6a2083",
+                "url": "https://api.github.com/repos/doctrine/orm/zipball/d95e03ba660d50d785a9925f41927fef0ee553cf",
+                "reference": "d95e03ba660d50d785a9925f41927fef0ee553cf",
                 "shasum": ""
             },
             "require": {
-                "doctrine/annotations": "~1.5",
-                "doctrine/cache": "~1.6",
-                "doctrine/collections": "^1.4",
-                "doctrine/common": "^2.7.1",
-                "doctrine/dbal": "^2.6",
-                "doctrine/instantiator": "~1.1",
+                "doctrine/annotations": "^1.8",
+                "doctrine/cache": "^1.9.1",
+                "doctrine/collections": "^1.5",
+                "doctrine/common": "^2.11 || ^3.0",
+                "doctrine/dbal": "^2.9.3",
+                "doctrine/event-manager": "^1.1",
+                "doctrine/inflector": "^1.0",
+                "doctrine/instantiator": "^1.3",
+                "doctrine/lexer": "^1.0",
+                "doctrine/persistence": "^1.3.3 || ^2.0",
                 "ext-pdo": "*",
+                "ocramius/package-versions": "^1.2",
                 "php": "^7.1",
-                "symfony/console": "~3.0|~4.0"
+                "symfony/console": "^3.0|^4.0|^5.0"
             },
             "require-dev": {
-                "doctrine/coding-standard": "^1.0",
-                "phpunit/phpunit": "^6.5",
-                "squizlabs/php_codesniffer": "^3.2",
-                "symfony/yaml": "~3.4|~4.0"
+                "doctrine/coding-standard": "^5.0",
+                "phpstan/phpstan": "^0.12.18",
+                "phpunit/phpunit": "^7.5",
+                "symfony/yaml": "^3.4|^4.0|^5.0",
+                "vimeo/psalm": "^3.11"
             },
             "suggest": {
                 "symfony/yaml": "If you want to use YAML Metadata Mapping Driver"
@@ -1028,7 +1034,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.6.x-dev"
+                    "dev-master": "2.7.x-dev"
                 }
             },
             "autoload": {
@@ -1041,6 +1047,10 @@
                 "MIT"
             ],
             "authors": [
+                {
+                    "name": "Guilherme Blanco",
+                    "email": "guilhermeblanco@gmail.com"
+                },
                 {
                     "name": "Roman Borschel",
                     "email": "roman@code-factory.org"
@@ -1049,10 +1059,6 @@
                     "name": "Benjamin Eberlei",
                     "email": "kontakt@beberlei.de"
                 },
-                {
-                    "name": "Guilherme Blanco",
-                    "email": "guilhermeblanco@gmail.com"
-                },
                 {
                     "name": "Jonathan Wage",
                     "email": "jonwage@gmail.com"
@@ -1063,12 +1069,26 @@
                 }
             ],
             "description": "Object-Relational-Mapper for PHP",
-            "homepage": "http://www.doctrine-project.org",
+            "homepage": "https://www.doctrine-project.org/projects/orm.html",
             "keywords": [
                 "database",
                 "orm"
             ],
-            "time": "2017-12-20T00:38:15+00:00"
+            "funding": [
+                {
+                    "url": "https://www.doctrine-project.org/sponsorship.html",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://www.patreon.com/phpdoctrine",
+                    "type": "patreon"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/doctrine/orm",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-05-26T16:03:49+00:00"
         },
         {
             "name": "doctrine/persistence",