diff --git a/data/api/client-server/room_summary.yaml b/data/api/client-server/room_summary.yaml
index 9548e3ca..3269f862 100644
--- a/data/api/client-server/room_summary.yaml
+++ b/data/api/client-server/room_summary.yaml
@@ -102,7 +102,7 @@ paths:
                     join_rule: "public",
                     room_type: "m.space",
                     membership: "invite",
-                    encryption: "m.megolm.v100",
+                    encryption: "m.megolm.v1.aes-sha2",
                     room_version: "9001",
                   }
         "404":