diff --git a/changelog.d/3999.bugfix b/changelog.d/3999.bugfix
new file mode 100644
index 0000000000000000000000000000000000000000..dc3b2caffa58c10e3396e75c383ec08c0dfdd6db
--- /dev/null
+++ b/changelog.d/3999.bugfix
@@ -0,0 +1 @@
+Fix handling of rejected threepid invites