diff --git a/changelog_unreleased/3666-unable-to-upload-dhcp-leases-to-mysql-database b/changelog_unreleased/3666-unable-to-upload-dhcp-leases-to-mysql-database
new file mode 100644
index 0000000000..6dafc75a43
--- /dev/null
+++ b/changelog_unreleased/3666-unable-to-upload-dhcp-leases-to-mysql-database
@@ -0,0 +1,5 @@
+[bug]		andrei
+	An "argument list too long" error message no longer appears when
+	the "kea-admin lease-upload" command tries to upload a large set
+	of leases. The command is also significantly faster now.
+	(Gitlab #3666)