update ACAH links/dates
diff --git a/site/src/site/assets/img/confs/acah2021.png b/site/src/site/assets/img/confs/acah2021.png
new file mode 100644
index 0000000..f605342
--- /dev/null
+++ b/site/src/site/assets/img/confs/acah2021.png
Binary files differ
diff --git a/site/src/site/sitemap-user.groovy b/site/src/site/sitemap-user.groovy
index 77df490..b641cc5 100644
--- a/site/src/site/sitemap-user.groovy
+++ b/site/src/site/sitemap-user.groovy
@@ -214,18 +214,6 @@
 
 allEvents {
     // Note that the event image should be 257x180 to look nice
-    event('ApacheCon @Home') {
-        location 'Virtual'
-        date 'Sept 28 - Oct 2, 2020'
-        url 'https://www.apachecon.com/acna2020/'
-        logo 'img/confs/apacheconNA.png'
-        description '''
-            <p>
-            The latest innovations from dozens of Apache projects and their communities in a collaborative, vendor-neutral environment.
-            </p>
-            <p>There is a whole track dedicated to Groovy!</p>
-        '''
-    }
     event('GR8Conf & JDK IO') {
         location 'Copenhagen, Denmark'
         date 'May 26-28, 2021'
@@ -238,6 +226,18 @@
             <p>We feature the Hackergarten and have an awesome Meet & Greet with craft beers brewed by the crew!</p>
         '''
     }
+    event('ApacheCon @Home') {
+        location 'Virtual'
+        date 'Sep 21-23, 2021'
+        url 'https://www.apachecon.com/acah2021/'
+        logo 'img/confs/acah2021.png'
+        description '''
+            <p>
+            The latest innovations from dozens of Apache projects and their communities in a collaborative, vendor-neutral environment.
+            </p>
+            <p>There is a whole track dedicated to Groovy!</p>
+        '''
+    }
 }
 
 books {