diff --git a/CHANGELOG.md b/CHANGELOG.md
index 27acf46..d086c01 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 ## Changelog
 
-### v0.19.3: 2020/08/03
+### v0.19.4: 2020/04/11
+
+Fixes minor typo in TrustPay request implementation causing defunct sandbox environment checking ([gregaroland](https://github.com/gregaroland)).
+
+### v0.19.3: 2020/03/08
 
 Force using HTTP 1.1 with PayPal IPN validation to conform to PayPal's [security guidelines and best practices](https://developer.paypal.com/docs/api/info-security-guidelines/) and removed duplicated `cancel_return` attribute when issuing PayPal payment request ([igor-kamil](https://github.com/igor-kamil)).
 
diff --git a/README.md b/README.md
index 1414ec6..7f0416c 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Simple and unified object-oriented library written in PHP for e-commerce service
 
 * [PayPal](http://www.paypal.com) -- PayPal (Europe) S.à r.l. et Cie, S.C.A.
 
-The current version of the library is v0.19.3 and requires PHP 5.4 or PHP 7+ to work. Even though there are things to make better, it is already being used in production without any sort of problems.
+The current version of the library is v0.19.4 and requires PHP 5.4 or PHP 7+ to work. Even though there are things to make better, it is already being used in production without any sort of problems.
 
 Chaching library is open-sourced software licensed under the [MIT license](http://opensource.org/licenses/MIT).
 
@@ -28,7 +28,7 @@ The recommended way to install the library is to use [composer](http://getcompos
 
 	{
 	  "require": {
-	    "backbone/chaching": "0.19.3"
+	    "backbone/chaching": "0.19.4"
 	  }
 	}
 
diff --git a/composer.json b/composer.json
index 398beff..1681d40 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
     "name": "backbone/chaching",
     "type": "library",
-    "version": "0.19.3",
+    "version": "0.19.4",
     "license": "MIT",
     "description": "Universal payment library for banking services in Slovakia",
     "keywords": [
diff --git a/src/Chaching/Chaching.php b/src/Chaching/Chaching.php
index 7b45208..c4ca8c0 100644
--- a/src/Chaching/Chaching.php
+++ b/src/Chaching/Chaching.php
@@ -16,7 +16,7 @@
 
 class Chaching
 {
-	const VERSION 		= '0.19.3';
+	const VERSION 		= '0.19.4';
 
 	const CARDPAY 		= 'cardpay';
 	const SPOROPAY 		= 'sporopay';
diff --git a/src/Chaching/Drivers/TrustPay/Request.php b/src/Chaching/Drivers/TrustPay/Request.php
index ddae0fb..610cfdd 100644
--- a/src/Chaching/Drivers/TrustPay/Request.php
+++ b/src/Chaching/Drivers/TrustPay/Request.php
@@ -11,7 +11,7 @@
 
 namespace Chaching\Drivers\TrustPay;
 
-use \Chachinbg\Chaching;
+use \Chaching\Chaching;
 use \Chaching\Currencies;
 use \Chaching\Driver;
 use \Chaching\Encryption\Hmac;