diff --git a/composer.lock b/composer.lock
index e7efac72e86384479068920aafc1d22b57c45cc1..0d76a275022f5954f5e10b983046e47bebe5667b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -73,16 +73,16 @@
         },
         {
             "name": "api-platform/core",
-            "version": "v2.6.1",
+            "version": "v2.5.10",
             "source": {
                 "type": "git",
                 "url": "https://github.com/api-platform/core.git",
-                "reference": "4b293b0c004597bcf5f6b653d7d464fa71e9d064"
+                "reference": "908dafa251fc532cb2c3673318b4ac4a6438f9da"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/api-platform/core/zipball/4b293b0c004597bcf5f6b653d7d464fa71e9d064",
-                "reference": "4b293b0c004597bcf5f6b653d7d464fa71e9d064",
+                "url": "https://api.github.com/repos/api-platform/core/zipball/908dafa251fc532cb2c3673318b4ac4a6438f9da",
+                "reference": "908dafa251fc532cb2c3673318b4ac4a6438f9da",
                 "shasum": ""
             },
             "require": {
@@ -94,7 +94,7 @@
                 "symfony/http-foundation": "^4.4 || ^5.1",
                 "symfony/http-kernel": "^4.4 || ^5.1",
                 "symfony/property-access": "^3.4.19 || ^4.4 || ^5.1",
-                "symfony/property-info": "^3.4 || ^4.4 || ^5.2.1",
+                "symfony/property-info": "^3.4 || ^4.4 || ^5.1",
                 "symfony/serializer": "^4.4 || ^5.1",
                 "symfony/web-link": "^4.4 || ^5.1",
                 "willdurand/negotiation": "^2.0.3 || ^3.0"
@@ -124,7 +124,7 @@
                 "phpdocumentor/reflection-docblock": "^3.0 || ^4.0 || ^5.1",
                 "phpdocumentor/type-resolver": "^0.3 || ^0.4 || ^1.4",
                 "phpstan/extension-installer": "^1.0",
-                "phpstan/phpstan": "^0.12.65",
+                "phpstan/phpstan": "^0.12.53@dev",
                 "phpstan/phpstan-doctrine": "^0.12.7",
                 "phpstan/phpstan-phpunit": "^0.12.4",
                 "phpstan/phpstan-symfony": "^0.12.4",
@@ -166,7 +166,6 @@
                 "doctrine/mongodb-odm-bundle": "To support MongoDB. Only versions 4.0 and later are supported.",
                 "elasticsearch/elasticsearch": "To support Elasticsearch.",
                 "guzzlehttp/guzzle": "To use the HTTP cache invalidation system.",
-                "ocramius/package-versions": "To display the API Platform's version in the debug bar.",
                 "phpdocumentor/reflection-docblock": "To support extracting metadata from PHPDoc.",
                 "psr/cache-implementation": "To use metadata caching.",
                 "ramsey/uuid": "To support Ramsey's UUID identifiers.",
@@ -175,14 +174,13 @@
                 "symfony/expression-language": "To use authorization features.",
                 "symfony/security": "To use authorization features.",
                 "symfony/twig-bundle": "To use the Swagger UI integration.",
-                "symfony/uid": "To support Symfony UUID/ULID identifiers.",
                 "symfony/web-profiler-bundle": "To use the data collector.",
                 "webonyx/graphql-php": "To support GraphQL."
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.6.x-dev"
+                    "dev-master": "2.5.x-dev"
                 },
                 "symfony": {
                     "require": "^3.4 || ^4.4 || ^5.1"
@@ -219,7 +217,7 @@
             ],
             "support": {
                 "issues": "https://github.com/api-platform/core/issues",
-                "source": "https://github.com/api-platform/core/tree/v2.6.1"
+                "source": "https://github.com/api-platform/core/tree/v2.5.10"
             },
             "funding": [
                 {
@@ -227,7 +225,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-01-24T21:00:50+00:00"
+            "time": "2021-01-22T10:36:37+00:00"
         },
         {
             "name": "brick/math",
@@ -369,7 +367,7 @@
             "license": [
                 "AGPL-3.0-or-later"
             ],
-            "time": "2021-02-01T15:40:38+00:00"
+            "time": "2021-02-02T12:48:40+00:00"
         },
         {
             "name": "dbp/api-starter-bundle",