Index: trunk/src/org/openstreetmap/josm/gui/history/OpenChangesetPopupMenu.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/history/OpenChangesetPopupMenu.java	(revision 16387)
+++ trunk/src/org/openstreetmap/josm/gui/history/OpenChangesetPopupMenu.java	(revision 16388)
@@ -59,5 +59,5 @@
             new ChangesetViewerEntry(tr("View changeset in web browser"), Config.getUrls().getBaseBrowseUrl() + "/changeset/{0}"),
             new ChangesetViewerEntry(tr("Open {0}", "achavi (Augmented OSM Change Viewer)"), "https://overpass-api.de/achavi/?changeset={0}"),
-            new ChangesetViewerEntry(tr("Open {0}", "OSMCha (OSM Changeset Analyzer)"), "https://osmcha.mapbox.com/changesets/{0}"),
+            new ChangesetViewerEntry(tr("Open {0}", "OSMCha (OSM Changeset Analyzer)"), "https://osmcha.org/changesets/{0}"),
             new ChangesetViewerEntry(tr("Open {0}", "OSM History Viewer (Mapki)"), "http://osm.mapki.com/history/{1}.php?id={2}"),
             new ChangesetViewerEntry(tr("Open {0}", "OSM History Viewer (Pewu)"), "https://pewu.github.io/osm-history/#/{1}/{2}"),