diff --git a/composer.json b/composer.json
index b665d35..d418dd5 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "8.3.*",
-        "squizlabs/php_codesniffer": "2.6.*"
+        "squizlabs/php_codesniffer": "3.4.*"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/Amplitude.php b/src/Amplitude.php
index 1208807..317e0fd 100644
--- a/src/Amplitude.php
+++ b/src/Amplitude.php
@@ -359,6 +359,7 @@ public function setDeviceId($deviceId)
      * If no events are logged, it will not get sent to Amplitude
      *
      * @param array $userProperties
+     * @return \Zumba\Amplitude\Amplitude
      */
     public function setUserProperties(array $userProperties)
     {