diff --git a/composer.lock b/composer.lock
index 00cd738..da89fbd 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2670,23 +2670,24 @@
         },
         {
             "name": "swiftmailer/swiftmailer",
-            "version": "v5.4.4",
+            "version": "v5.4.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/swiftmailer/swiftmailer.git",
-                "reference": "545ce9136690cea74f98f86fbb9c92dd9ab1a756"
+                "reference": "cd142238a339459b10da3d8234220963f392540c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/545ce9136690cea74f98f86fbb9c92dd9ab1a756",
-                "reference": "545ce9136690cea74f98f86fbb9c92dd9ab1a756",
+                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/cd142238a339459b10da3d8234220963f392540c",
+                "reference": "cd142238a339459b10da3d8234220963f392540c",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.3"
             },
             "require-dev": {
-                "mockery/mockery": "~0.9.1"
+                "mockery/mockery": "~0.9.1",
+                "symfony/phpunit-bridge": "~3.2"
             },
             "type": "library",
             "extra": {
@@ -2719,7 +2720,7 @@
                 "mail",
                 "mailer"
             ],
-            "time": "2016-11-24T01:01:23+00:00"
+            "time": "2016-12-29T10:02:40+00:00"
         },
         {
             "name": "symfony/assetic-bundle",