diff --git a/composer.json b/composer.json
index 42f97ba5..a6498a9f 100644
--- a/composer.json
+++ b/composer.json
@@ -35,7 +35,7 @@
     "ikkez/f3-sheet": "0.4.*",
     "xfra35/f3-cron": "1.2.*",
     "monolog/monolog": "2.3.5",
-    "swiftmailer/swiftmailer": "6.2.*",
+    "swiftmailer/swiftmailer": "6.3.*",
     "league/html-to-markdown": "5.0.*",
     "cache/redis-adapter": "1.1.*",
     "cache/filesystem-adapter": "1.1.*",
diff --git a/composer.lock b/composer.lock
index c3824c82..ba8078e4 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": "7e1ba3417676d615428a08e60a51ae99",
+    "content-hash": "2d3b0811150d57cff91b42b8f78d4ebb",
     "packages": [
         {
             "name": "bcosca/fatfree-core",
@@ -2682,16 +2682,16 @@
         },
         {
             "name": "swiftmailer/swiftmailer",
-            "version": "v6.2.7",
+            "version": "v6.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/swiftmailer/swiftmailer.git",
-                "reference": "15f7faf8508e04471f666633addacf54c0ab5933"
+                "reference": "8a5d5072dca8f48460fce2f4131fcc495eec654c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/15f7faf8508e04471f666633addacf54c0ab5933",
-                "reference": "15f7faf8508e04471f666633addacf54c0ab5933",
+                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/8a5d5072dca8f48460fce2f4131fcc495eec654c",
+                "reference": "8a5d5072dca8f48460fce2f4131fcc495eec654c",
                 "shasum": ""
             },
             "require": {
@@ -2703,7 +2703,7 @@
             },
             "require-dev": {
                 "mockery/mockery": "^1.0",
-                "symfony/phpunit-bridge": "^4.4|^5.0"
+                "symfony/phpunit-bridge": "^4.4|^5.4"
             },
             "suggest": {
                 "ext-intl": "Needed to support internationalized email addresses"
@@ -2741,7 +2741,7 @@
             ],
             "support": {
                 "issues": "https://github.com/swiftmailer/swiftmailer/issues",
-                "source": "https://github.com/swiftmailer/swiftmailer/tree/v6.2.7"
+                "source": "https://github.com/swiftmailer/swiftmailer/tree/v6.3.0"
             },
             "funding": [
                 {
@@ -2754,7 +2754,7 @@
                 }
             ],
             "abandoned": "symfony/mailer",
-            "time": "2021-03-09T12:30:35+00:00"
+            "time": "2021-10-18T15:26:12+00:00"
         },
         {
             "name": "symfony/polyfill-iconv",