diff --git a/composer.json b/composer.json
index 31228c8a..3c30fe5e 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
 		"ext-json": "*",
 		"ext-pdo": "*",
 		"ext-xml": "*",
-		"phpmailer/phpmailer": ">=6.0.6 ~6.0",
+		"phpmailer/phpmailer": ">=6.4.1 ~6.0",
 		"symfony/config": "~3.4",
 		"symfony/dependency-injection": "~3.4",
 		"symfony/event-dispatcher": "~3.4",
diff --git a/composer.lock b/composer.lock
index ffe1962e..4a08830b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "984f0f8f41cf0e1d0b08397e6bb565a0",
+    "content-hash": "21bf20f2a7d6602e659723ca99c80d66",
     "packages": [
         {
             "name": "jaxl/jaxl",
@@ -133,16 +133,16 @@
         },
         {
             "name": "paragonie/random_compat",
-            "version": "v2.0.19",
+            "version": "v2.0.20",
             "source": {
                 "type": "git",
                 "url": "https://github.com/paragonie/random_compat.git",
-                "reference": "446fc9faa5c2a9ddf65eb7121c0af7e857295241"
+                "reference": "0f1f60250fccffeaf5dda91eea1c018aed1adc2a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/446fc9faa5c2a9ddf65eb7121c0af7e857295241",
-                "reference": "446fc9faa5c2a9ddf65eb7121c0af7e857295241",
+                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/0f1f60250fccffeaf5dda91eea1c018aed1adc2a",
+                "reference": "0f1f60250fccffeaf5dda91eea1c018aed1adc2a",
                 "shasum": ""
             },
             "require": {
@@ -178,7 +178,7 @@
                 "pseudorandom",
                 "random"
             ],
-            "time": "2020-10-15T10:06:57+00:00"
+            "time": "2021-04-17T09:33:01+00:00"
         },
         {
             "name": "php-pushover/php-pushover",
@@ -212,16 +212,16 @@
         },
         {
             "name": "phpmailer/phpmailer",
-            "version": "v6.4.0",
+            "version": "v6.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPMailer/PHPMailer.git",
-                "reference": "050d430203105c27c30efd1dce7aa421ad882d01"
+                "reference": "9256f12d8fb0cd0500f93b19e18c356906cbed3d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/050d430203105c27c30efd1dce7aa421ad882d01",
-                "reference": "050d430203105c27c30efd1dce7aa421ad882d01",
+                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/9256f12d8fb0cd0500f93b19e18c356906cbed3d",
+                "reference": "9256f12d8fb0cd0500f93b19e18c356906cbed3d",
                 "shasum": ""
             },
             "require": {
@@ -274,7 +274,7 @@
                 }
             ],
             "description": "PHPMailer is a full-featured email creation and transfer class for PHP",
-            "time": "2021-03-31T20:06:42+00:00"
+            "time": "2021-04-29T12:25:04+00:00"
         },
         {
             "name": "psr/container",