diff --git a/composer.lock b/composer.lock
index eafc7208f..6c62ca2de 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2703,16 +2703,16 @@
         },
         {
             "name": "symfony/flex",
-            "version": "v1.12.2",
+            "version": "v1.17.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/flex.git",
-                "reference": "e472606b4b3173564f0edbca8f5d32b52fc4f2c9"
+                "reference": "7a79135e1dc66b30042b4d968ecba0908f9374bc"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/flex/zipball/e472606b4b3173564f0edbca8f5d32b52fc4f2c9",
-                "reference": "e472606b4b3173564f0edbca8f5d32b52fc4f2c9",
+                "url": "https://api.github.com/repos/symfony/flex/zipball/7a79135e1dc66b30042b4d968ecba0908f9374bc",
+                "reference": "7a79135e1dc66b30042b4d968ecba0908f9374bc",
                 "shasum": ""
             },
             "require": {
@@ -2721,16 +2721,13 @@
             },
             "require-dev": {
                 "composer/composer": "^1.0.2|^2.0",
-                "symfony/dotenv": "^4.4|^5.0",
-                "symfony/filesystem": "^4.4|^5.0",
-                "symfony/phpunit-bridge": "^4.4|^5.0",
-                "symfony/process": "^3.4|^4.4|^5.0"
+                "symfony/dotenv": "^4.4|^5.0|^6.0",
+                "symfony/filesystem": "^4.4|^5.0|^6.0",
+                "symfony/phpunit-bridge": "^4.4.12|^5.0|^6.0",
+                "symfony/process": "^4.4|^5.0|^6.0"
             },
             "type": "composer-plugin",
             "extra": {
-                "branch-alias": {
-                    "dev-main": "1.12-dev"
-                },
                 "class": "Symfony\\Flex\\Flex"
             },
             "autoload": {
@@ -2763,7 +2760,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-02-16T14:05:05+00:00"
+            "time": "2021-11-29T15:39:37+00:00"
         },
         {
             "name": "symfony/framework-bundle",