diff --git a/composer.json b/composer.json
index 4aaf3ea..8224772 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
     "description": "OpenCFP is a PHP-based conference talk submission system.",
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+        "guzzlehttp/guzzle": "7.15.2",
         "michelf/php-markdown": "~1.0",
         "monolog/monolog":"~1.0"
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diff --git a/composer.lock b/composer.lock
index be46344..f992444 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,38 +4,41 @@
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@@ -45,8 +48,9 @@
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@@ -110,6 +114,10 @@
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@@ -124,38 +132,38 @@
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@@ -190,6 +198,10 @@
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@@ -204,36 +216,39 @@
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@@ -302,6 +317,10 @@
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@@ -316,7 +335,7 @@
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@@ -455,16 +474,16 @@
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@@ -500,24 +519,27 @@
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-            "time": "2023-04-10T20:12:12+00:00"
+            "support": {
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@@ -541,7 +563,7 @@
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+            "description": "PSR-17: Common interfaces for PSR-7 HTTP message factories",
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@@ -552,7 +574,10 @@
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-            "time": "2023-04-10T20:10:41+00:00"
+            "support": {
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@@ -602,6 +627,9 @@
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@@ -700,29 +728,29 @@
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@@ -746,6 +774,93 @@
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+            "license": [
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+            "authors": [
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+                    "name": "Ion Bazan",
+                    "email": "ion.bazan@gmail.com"
+                },
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 8.0+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
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@@ -755,21 +870,25 @@
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-            "time": "2022-01-02T09:53:40+00:00"
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