diff --git a/Classes/Fusion/ConvertEmailLinksImplementation.php b/Classes/Fusion/ConvertEmailLinksImplementation.php
index f20b8aa..fed05d4 100644
--- a/Classes/Fusion/ConvertEmailLinksImplementation.php
+++ b/Classes/Fusion/ConvertEmailLinksImplementation.php
@@ -119,6 +119,7 @@ public function convertLinkName(array $matches)
      */
     public function convertMailLink($matches)
     {
+        // make sure that URL parameter dividers (`&`) are not encoded
         $email = html_entity_decode(trim($matches[2]), ENT_QUOTES | ENT_HTML5);
         $replacedHrefContent = $this->mailToHrefConverter->convert($email);
 
diff --git a/composer.json b/composer.json
index bf1f609..64432dc 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,8 @@
     "description": "A email address and link obfuscation plugin for Neos CMS",
     "require": {
         "php": ">=7.1",
-        "neos/neos": "^3.0 || ^4.0 || ^5.0 || ^7.0 || ^8.0"
+        "neos/neos": "^3.0 || ^4.0 || ^5.0 || ^7.0 || ^8.0",
+        "guzzlehttp/guzzle": "*"
     },
     "autoload": {
         "psr-4": {