diff --git a/README.md b/README.md
index 5bffb91..461faa3 100644
--- a/README.md
+++ b/README.md
@@ -229,6 +229,9 @@ $ses = new SimpleEmailService('AccessKey', 'SecretKey', $region_endpoint, $trigg
 
 ### Changelog
 
+v.0.9.5
+*   Fix for arrays in request query params (#83) 
+
 v.0.9.4
 *   Fix for PHP8 errors (#81)
 
diff --git a/src/SimpleEmailService.php b/src/SimpleEmailService.php
index 67bccf6..d970081 100644
--- a/src/SimpleEmailService.php
+++ b/src/SimpleEmailService.php
@@ -46,7 +46,7 @@
 *
 * @link https://github.com/daniel-zahariev/php-aws-ses
 * @package AmazonSimpleEmailService
-* @version v0.9.4
+* @version v0.9.5
 */
 class SimpleEmailService
 {
@@ -150,7 +150,7 @@ public function __construct($accessKey = null, $secretKey = null, $host = self::
      * @deprecated Currently only V4 supported.
      */
 	public function setRequestSignatureVersion($requestSignatureVersion) {
-	    $this->__requestSignatureVersion = self::REQUEST_SIGNATURE_V4;
+	    $this->__requestSignatureVersion = $requestSignatureVersion;
 
 	    return $this;
     }
diff --git a/src/SimpleEmailServiceMessage.php b/src/SimpleEmailServiceMessage.php
index 29d2a31..ee951f0 100644
--- a/src/SimpleEmailServiceMessage.php
+++ b/src/SimpleEmailServiceMessage.php
@@ -4,7 +4,7 @@
  *
  * @link https://github.com/daniel-zahariev/php-aws-ses
  * @package AmazonSimpleEmailService
- * @version v0.9.4
+ * @version v0.9.5
  */
 final class SimpleEmailServiceMessage {
 
diff --git a/src/SimpleEmailServiceRequest.php b/src/SimpleEmailServiceRequest.php
index fa0d530..12a024c 100644
--- a/src/SimpleEmailServiceRequest.php
+++ b/src/SimpleEmailServiceRequest.php
@@ -4,7 +4,7 @@
 *
 * @link https://github.com/daniel-zahariev/php-aws-ses
 * @package AmazonSimpleEmailService
-* @version v0.9.4
+* @version v0.9.5
 */
 class SimpleEmailServiceRequest
 {
@@ -81,6 +81,7 @@ public function setParameter($key, $value, $replace = true) {
 	* Get the params for the request
 	*
 	* @return array $params
+	* @deprecated
 	*/
 	public function getParametersEncoded() {
 		$params = array();
@@ -146,7 +147,8 @@ protected function getCurlHandler() {
 	public function getResponse() {
 
         $url = 'https://'.$this->ses->getHost().'/';
-        $query = implode('&', $this->getParametersEncoded());
+        ksort($this->parameters);
+        $query = http_build_query($this->parameters, '', '&', PHP_QUERY_RFC1738);
         $headers = $this->getHeaders($query);
 
 		$curl_handler = $this->getCurlHandler();
@@ -271,6 +273,7 @@ private function __responseWriteCallback($curl, $data) {
 	*
 	* @param string $var String to encode
 	* @return string
+	* @deprecated
 	*/
 	private function __customUrlEncode($var) {
 		return str_replace('%7E', '~', rawurlencode($var));