diff --git a/chapters/sonne-7x4m9k/members.json b/chapters/sonne-7x4m9k/members.json
new file mode 100644
index 0000000..9a30c6f
--- /dev/null
+++ b/chapters/sonne-7x4m9k/members.json
@@ -0,0 +1,4 @@
+{
+  "lastUpdated": "2026-04-17",
+  "members": []
+}