diff --git a/composer.lock b/composer.lock
index f59f6da..7fe0d4e 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1438,15 +1438,15 @@
             "authors": [
                 {
                     "name": "Joshua Atkins",
+                    "role": "Developer",
                     "email": "joshua.atkins@jublo.net",
-                    "homepage": "http://atkins.im/",
-                    "role": "Developer"
+                    "homepage": "http://atkins.im/"
                 },
                 {
                     "name": "J.M.",
+                    "role": "Developer",
                     "email": "jm@jublo.net",
-                    "homepage": "http://mynetx.net/",
-                    "role": "Developer"
+                    "homepage": "http://mynetx.net/"
                 }
             ],
             "description": "Easy access to the Twitter REST API, Collections API, Streaming API, TON (Object Nest) API and Twitter Ads API — all from one PHP library.",
@@ -2482,16 +2482,16 @@
         },
         {
             "name": "symfony/flex",
-            "version": "v1.1.8",
+            "version": "v1.4.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/flex.git",
-                "reference": "955774ecf07b10230bb5b44e150ba078b45f68fa"
+                "reference": "4467ab35c82edebac58fe58c22cea166a805eb1f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/flex/zipball/955774ecf07b10230bb5b44e150ba078b45f68fa",
-                "reference": "955774ecf07b10230bb5b44e150ba078b45f68fa",
+                "url": "https://api.github.com/repos/symfony/flex/zipball/4467ab35c82edebac58fe58c22cea166a805eb1f",
+                "reference": "4467ab35c82edebac58fe58c22cea166a805eb1f",
                 "shasum": ""
             },
             "require": {
@@ -2500,12 +2500,14 @@
             },
             "require-dev": {
                 "composer/composer": "^1.0.2",
-                "symfony/phpunit-bridge": "^3.2.8"
+                "symfony/dotenv": "^3.4|^4.0",
+                "symfony/phpunit-bridge": "^3.4.19|^4.1.8",
+                "symfony/process": "^2.7|^3.0|^4.0"
             },
             "type": "composer-plugin",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.1-dev"
+                    "dev-master": "1.4-dev"
                 },
                 "class": "Symfony\\Flex\\Flex"
             },
@@ -2525,7 +2527,7 @@
                 }
             ],
             "description": "Composer plugin for Symfony",
-            "time": "2018-11-15T06:11:38+00:00"
+            "time": "2019-07-19T08:59:18+00:00"
         },
         {
             "name": "symfony/framework-bundle",