diff --git a/composer.json b/composer.json
index 8500f23..859bf54 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
         "ext-grpc": "*",
         "ext-sockets": "*",
         "ext-curl": "*",
-        "phpmailer/phpmailer": "6.10.0",
+        "phpmailer/phpmailer": "6.11.0",
         "grpc/grpc": "1.74.0",
         "google/protobuf": "4.32.1"
     }
diff --git a/composer.lock b/composer.lock
index 43768ca..3236f90 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": "5b4d45fc9d9312f02e88a345999757cd",
+    "content-hash": "54936614a171b35a2e27e4038bc463c3",
     "packages": [
         {
             "name": "google/protobuf",
@@ -96,16 +96,16 @@
         },
         {
             "name": "phpmailer/phpmailer",
-            "version": "v6.10.0",
+            "version": "v6.11.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPMailer/PHPMailer.git",
-                "reference": "bf74d75a1fde6beaa34a0ddae2ec5fce0f72a144"
+                "reference": "9500c37b70ada2b94f691f527ce11febc0c1998b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/bf74d75a1fde6beaa34a0ddae2ec5fce0f72a144",
-                "reference": "bf74d75a1fde6beaa34a0ddae2ec5fce0f72a144",
+                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/9500c37b70ada2b94f691f527ce11febc0c1998b",
+                "reference": "9500c37b70ada2b94f691f527ce11febc0c1998b",
                 "shasum": ""
             },
             "require": {
@@ -126,6 +126,7 @@
             },
             "suggest": {
                 "decomplexity/SendOauth2": "Adapter for using XOAUTH2 authentication",
+                "ext-imap": "Needed to support advanced email address parsing according to RFC822",
                 "ext-mbstring": "Needed to send email in multibyte encoding charset or decode encoded addresses",
                 "ext-openssl": "Needed for secure SMTP sending and DKIM signing",
                 "greew/oauth2-azure-provider": "Needed for Microsoft Azure XOAUTH2 authentication",
@@ -165,7 +166,7 @@
             "description": "PHPMailer is a full-featured email creation and transfer class for PHP",
             "support": {
                 "issues": "https://github.com/PHPMailer/PHPMailer/issues",
-                "source": "https://github.com/PHPMailer/PHPMailer/tree/v6.10.0"
+                "source": "https://github.com/PHPMailer/PHPMailer/tree/v6.11.0"
             },
             "funding": [
                 {
@@ -173,7 +174,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-04-24T15:19:31+00:00"
+            "time": "2025-09-29T16:40:59+00:00"
         }
     ],
     "packages-dev": [],