diff --git a/event-asynchronous/etc/event-asynchronous.gif b/event-asynchronous/etc/event-asynchronous.gif
deleted file mode 100644
index facd39074..000000000
Binary files a/event-asynchronous/etc/event-asynchronous.gif and /dev/null differ
diff --git a/event-asynchronous/etc/event-asynchronous.png b/event-asynchronous/etc/event-asynchronous.png
new file mode 100644
index 000000000..76cb1b626
Binary files /dev/null and b/event-asynchronous/etc/event-asynchronous.png differ