diff --git a/apps/editing-toolkit/editing-toolkit-plugin/event-countdown-block/blocks/src/edit.js b/apps/editing-toolkit/editing-toolkit-plugin/event-countdown-block/blocks/src/edit.js
index <HASH>..<HASH> 100644
--- a/apps/editing-toolkit/editing-toolkit-plugin/event-countdown-block/blocks/src/edit.js
+++ b/apps/editing-toolkit/editing-toolkit-plugin/event-countdown-block/blocks/src/edit.js
@@ -55,6 +55,7 @@ const edit = ( { attributes, setAttributes, className } ) => {
 							onClick={ onToggle }
 							aria-expanded={ isOpen }
 							aria-live="polite"
+							isSecondary
 						>
 							{ label }
 						</Button>
Event Countdown Block: Update date picker button to use secondary styling (#<I>)