diff --git a/composer.lock b/composer.lock
index bc09757..b4359c3 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2671,16 +2671,16 @@
         },
         {
             "name": "symfony/dotenv",
-            "version": "v4.1.4",
+            "version": "v4.3.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dotenv.git",
-                "reference": "22ca63c46e252b8a8f37b8f9e6da66bff5b3d3e7"
+                "reference": "1785b18148a016b8f4e6a612291188d568e1f9cd"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/dotenv/zipball/22ca63c46e252b8a8f37b8f9e6da66bff5b3d3e7",
-                "reference": "22ca63c46e252b8a8f37b8f9e6da66bff5b3d3e7",
+                "url": "https://api.github.com/repos/symfony/dotenv/zipball/1785b18148a016b8f4e6a612291188d568e1f9cd",
+                "reference": "1785b18148a016b8f4e6a612291188d568e1f9cd",
                 "shasum": ""
             },
             "require": {
@@ -2692,7 +2692,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.1-dev"
+                    "dev-master": "4.3-dev"
                 }
             },
             "autoload": {
@@ -2724,7 +2724,7 @@
                 "env",
                 "environment"
             ],
-            "time": "2018-07-26T11:24:31+00:00"
+            "time": "2019-08-03T21:50:52+00:00"
         },
         {
             "name": "symfony/event-dispatcher",