diff --git a/build/packager.php b/build/packager.php
index 13bf3d828c..75c4f17fc4 100644
--- a/build/packager.php
+++ b/build/packager.php
@@ -13,6 +13,7 @@
 }
 
 $burgomaster->recursiveCopy('src', 'Aws');
+$burgomaster->recursiveCopy('vendor/aws/aws-php-sns-message-validator/src', 'Aws/Sns');
 $burgomaster->recursiveCopy('vendor/mtdowling/jmespath.php/src', 'JmesPath');
 $burgomaster->recursiveCopy('vendor/guzzlehttp/guzzle/src', 'GuzzleHttp');
 $burgomaster->recursiveCopy('vendor/guzzlehttp/psr7/src', 'GuzzleHttp/Psr7');
diff --git a/composer.json b/composer.json
index e5837bc530..5de060ac37 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,8 @@
         "ext-dom": "*",
         "ext-simplexml": "*",
         "phpunit/phpunit": "~4.0",
-        "behat/behat": "~3.0"
+        "behat/behat": "~3.0",
+        "aws/aws-php-sns-message-validator": "^1.0"
     },
     "suggest": {
         "ext-openssl": "Allows working with CloudFront private distributions and verifying received SNS messages",