diff --git a/composer.lock b/composer.lock
index 4019b0e..739e445 100644
--- a/composer.lock
+++ b/composer.lock
@@ -704,16 +704,16 @@
         },
         {
             "name": "guzzlehttp/guzzle",
-            "version": "6.5.3",
+            "version": "6.5.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "aab4ebd862aa7d04f01a4b51849d657db56d882e"
+                "reference": "a4a1b6930528a8f7ee03518e6442ec7a44155d9d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/aab4ebd862aa7d04f01a4b51849d657db56d882e",
-                "reference": "aab4ebd862aa7d04f01a4b51849d657db56d882e",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/a4a1b6930528a8f7ee03518e6442ec7a44155d9d",
+                "reference": "a4a1b6930528a8f7ee03518e6442ec7a44155d9d",
                 "shasum": ""
             },
             "require": {
@@ -721,7 +721,7 @@
                 "guzzlehttp/promises": "^1.0",
                 "guzzlehttp/psr7": "^1.6.1",
                 "php": ">=5.5",
-                "symfony/polyfill-intl-idn": "^1.11"
+                "symfony/polyfill-intl-idn": "1.17.0"
             },
             "require-dev": {
                 "ext-curl": "*",
@@ -767,7 +767,7 @@
                 "rest",
                 "web service"
             ],
-            "time": "2020-04-18T10:38:46+00:00"
+            "time": "2020-05-25T19:35:05+00:00"
         },
         {
             "name": "guzzlehttp/promises",
@@ -7105,8 +7105,8 @@
             "authors": [
                 {
                     "name": "Arne Blankerts",
-                    "role": "Developer",
-                    "email": "arne@blankerts.de"
+                    "email": "arne@blankerts.de",
+                    "role": "Developer"
                 }
             ],
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",