diff --git a/ChangeLog.txt b/ChangeLog.txt
index 2f88f36..18a4065 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -1,3 +1,19 @@
+ParseCSV 1.2.1
+-----------------------------------
+Date: 25-Apr-2020
+
+Breaking changes: none
+New features: none
+Bug fixes: none
+
+Code quality:
+- Switched from PHPUnit 4 to 6 to get rid of
+  wrappers. This will reduce friction for PhpStorm users,
+  because it gets rid of the "Multiple definitions" error
+  See issue #188. Thanks to @SharkMachine for the hint.
+-----------------------------------
+
+
 ParseCSV 1.2.0
 -----------------------------------
 Date: 07-Jan-2020
diff --git a/tests/Bootstrap.php b/tests/Bootstrap.php
index 3de63b4..6b01b21 100644
--- a/tests/Bootstrap.php
+++ b/tests/Bootstrap.php
@@ -5,9 +5,3 @@ if (!file_exists('vendor/autoload.php')) {
 }
 
 require __DIR__ . '/../vendor/autoload.php';
-
-if (!class_exists('PHPUnit\Framework\TestCase') && class_exists('PHPUnit_Framework_TestCase')) {
-    // we run on an older PHPUnit version without namespaces.
-    require_once __DIR__ . '/PHPUnit_Framework_TestCase.inc.php';
-}
-