diff --git a/webclient/src/Charts.js b/webclient/src/Charts.js
index 313a10a..d4198c3 100644
--- a/webclient/src/Charts.js
+++ b/webclient/src/Charts.js
@@ -92,7 +92,7 @@ export function Charts(props) {
 
 			<Header size='medium'>Space Activity</Header>
 
-			<p>Daily since March 7th, 2020.</p>
+			<p>Daily since March 7th, 2020, updates hourly.</p>
 
 			<p>
 				{spaceActivity &&