diff --git a/data/event-schemas/schema/m.receipt.yaml b/data/event-schemas/schema/m.receipt.yaml
index 366aaf28..80f0daa8 100644
--- a/data/event-schemas/schema/m.receipt.yaml
+++ b/data/event-schemas/schema/m.receipt.yaml
@@ -1,49 +1,42 @@
-{
-    "type": "object",
-    "title": "Receipt Event",
-    "description": "Informs the client of new receipts.",
-    "allOf": [{
-        "$ref": "core-event-schema/event.yaml"
-    }],
-    "properties": {
-        "content": {
-            "type": "object",
-            "patternProperties": {
-                "^\\$": {
-                    "type": "object",
-                    "x-pattern": "$EVENT_ID",
-                    "title": "Receipts",
-                    "description": "The mapping of event ID to a collection of receipts for this event ID. The event ID is the ID of the event being acknowledged and *not* an ID for the receipt itself.",
-                    "properties": {
-                        "m.read": {
-                            "type": "object",
-                            "title": "Users",
-                            "description": "A collection of users who have sent `m.read` receipts for this event.",
-                            "patternProperties": {
-                                "^@": {
-                                    "type": "object",
-                                    "title": "Receipt",
-                                    "description": "The mapping of user ID to receipt. The user ID is the entity who sent this receipt.",
-                                    "x-pattern": "$USER_ID",
-                                    "properties": {
-                                        "ts": {
-                                            "type": "integer",
-                                            "format": "int64",
-                                            "description": "The timestamp the receipt was sent at."
-                                        }
-                                    }
-                                }
-                            }
-                        }
-                    }
-                }
-            },
-            "additionalProperties": false
-        },
-        "type": {
-            "type": "string",
-            "enum": ["m.receipt"]
-        }
-    },
-    "required": ["type", "content"]
-}
+type: object
+title: Receipt Event
+description: Informs the client of new receipts.
+allOf:
+    - $ref: "core-event-schema/event.yaml"
+properties:
+    content:
+        type: object
+        patternProperties:
+            "^\\$":
+                type: object
+                x-pattern: "$EVENT_ID"
+                title: Receipts
+                description: |-
+                    The mapping of event ID to a collection of receipts for this
+                    event ID. The event ID is the ID of the event being acknowledged
+                    and *not* an ID for the receipt itself.
+                properties:
+                    "m.read":
+                        type: object
+                        title: Users
+                        description: |-
+                            A collection of users who have sent `m.read` receipts for
+                            this event.
+                        patternProperties:
+                            "^@":
+                                type: object
+                                title: Receipt
+                                description: |-
+                                    The mapping of user ID to receipt. The user ID is the
+                                    entity who sent this receipt.
+                                x-pattern: "$USER_ID"
+                                properties:
+                                    ts:
+                                        type: integer
+                                        format: int64
+                                        description: The timestamp the receipt was sent at.
+        additionalProperties: false
+    type:
+        type: string
+        enum: ["m.receipt"]
+required: ["type", "content"]