diff --git a/matrix/retention/1h.json b/matrix/retention/1h.json
new file mode 100644
index 0000000..c0d665c
--- /dev/null
+++ b/matrix/retention/1h.json
@@ -0,0 +1,4 @@
+{
+      "min_lifetime": 3600000,
+      "max_lifetime": 3600000
+}