diff --git a/readme.txt b/readme.txt
index b9f96ae..b90560e 100644
--- a/readme.txt
+++ b/readme.txt
@@ -7,8 +7,8 @@ License URI:       http://www.gnu.org/licenses/gpl-2.0.html
 License:           GNU General Public License v2 or later
 Tags:              simple calendar, event calendar, event management, event list, schedule
 Requires PHP:      5.6.20
-Requires at least: 5.1
-Tested up to:      5.6
+Requires at least: 5.2
+Tested up to:      5.8
 Stable tag:        2.1.10
 
 You can easily manage events with this lightweight calendar. No complicated configuration. Simple to use. Sweeeet!
diff --git a/sugar-calendar-lite.php b/sugar-calendar-lite.php
index 452e06b..2d7a8d2 100755
--- a/sugar-calendar-lite.php
+++ b/sugar-calendar-lite.php
@@ -10,7 +10,7 @@
  * Text Domain:       sugar-calendar
  * Domain Path:       /sugar-calendar/includes/languages/
  * Requires PHP:      5.6.20
- * Requires at least: 5.1
+ * Requires at least: 5.2
  * Version:           2.1.10
  */
 
@@ -67,7 +67,7 @@ final class Sugar_Calendar_Requirements_Check {
 
 		// WordPress
 		'wp' => array(
-			'minimum' => '5.1.0',
+			'minimum' => '5.2.0',
 			'name'    => 'WordPress',
 			'exists'  => true,
 			'current' => false,