diff --git a/data/api/client-server/definitions/sso_login_flow.yaml b/data/api/client-server/definitions/sso_login_flow.yaml
index ca2a6602..e30b18f9 100644
--- a/data/api/client-server/definitions/sso_login_flow.yaml
+++ b/data/api/client-server/definitions/sso_login_flow.yaml
@@ -15,7 +15,7 @@ type: object
 title: m.login.sso flow schema
 properties:
   type:
-    type: enum
+    type: string
     enum: ["m.login.sso"]
     description: The string `m.login.sso`
     example: "m.login.sso"
diff --git a/data/api/server-server/definitions/event-schemas/m.device_list_update.yaml b/data/api/server-server/definitions/event-schemas/m.device_list_update.yaml
index 81519e66..8bb8a7dd 100644
--- a/data/api/server-server/definitions/event-schemas/m.device_list_update.yaml
+++ b/data/api/server-server/definitions/event-schemas/m.device_list_update.yaml
@@ -31,7 +31,7 @@ allOf:
   - type: object
     properties:
       edu_type:
-        type: enum
+        type: string
         enum: ['m.device_list_update']
         description: The string `m.device_list_update`.
         example: "m.device_list_update"
diff --git a/data/api/server-server/definitions/event-schemas/m.direct_to_device.yaml b/data/api/server-server/definitions/event-schemas/m.direct_to_device.yaml
index f628ebe0..6cb59fdd 100644
--- a/data/api/server-server/definitions/event-schemas/m.direct_to_device.yaml
+++ b/data/api/server-server/definitions/event-schemas/m.direct_to_device.yaml
@@ -23,7 +23,7 @@ allOf:
   - type: object
     properties:
       edu_type:
-        type: enum
+        type: string
         enum: ['m.direct_to_device']
         description: The string `m.direct_to_device`.
         example: "m.direct_to_device"
diff --git a/data/api/server-server/definitions/event-schemas/m.presence.yaml b/data/api/server-server/definitions/event-schemas/m.presence.yaml
index 09d5d0d2..c79729e0 100644
--- a/data/api/server-server/definitions/event-schemas/m.presence.yaml
+++ b/data/api/server-server/definitions/event-schemas/m.presence.yaml
@@ -21,7 +21,7 @@ allOf:
   - type: object
     properties:
       edu_type:
-        type: enum
+        type: string
         enum: ['m.presence']
         description: The string `m.presence`
         example: "m.presence"
@@ -44,7 +44,7 @@ allOf:
                   description: The user ID this presence EDU is for.
                   example: "@john:matrix.org"
                 presence:
-                  type: enum
+                  type: string
                   enum: ['offline', 'unavailable', 'online']
                   description: The presence of the user.
                   example: "online"
diff --git a/data/api/server-server/definitions/event-schemas/m.receipt.yaml b/data/api/server-server/definitions/event-schemas/m.receipt.yaml
index bbc3ac67..1f4d01f8 100644
--- a/data/api/server-server/definitions/event-schemas/m.receipt.yaml
+++ b/data/api/server-server/definitions/event-schemas/m.receipt.yaml
@@ -24,7 +24,7 @@ allOf:
   - type: object
     properties:
       edu_type:
-        type: enum
+        type: string
         enum: ['m.receipt']
         description: The string `m.receipt`
         example: "m.receipt"
diff --git a/data/api/server-server/definitions/event-schemas/m.signing_key_update.yaml b/data/api/server-server/definitions/event-schemas/m.signing_key_update.yaml
index aea99fe0..0748bc35 100644
--- a/data/api/server-server/definitions/event-schemas/m.signing_key_update.yaml
+++ b/data/api/server-server/definitions/event-schemas/m.signing_key_update.yaml
@@ -23,7 +23,7 @@ allOf:
   - type: object
     properties:
       edu_type:
-        type: enum
+        type: string
         enum: ['m.signing_key_update']
         description: The string `m.signing_update`.
         example: "m.signing_key_update"
diff --git a/data/api/server-server/definitions/event-schemas/m.typing.yaml b/data/api/server-server/definitions/event-schemas/m.typing.yaml
index 7f23bae1..fa36a871 100644
--- a/data/api/server-server/definitions/event-schemas/m.typing.yaml
+++ b/data/api/server-server/definitions/event-schemas/m.typing.yaml
@@ -20,7 +20,7 @@ allOf:
   - type: object
     properties:
       edu_type:
-        type: enum
+        type: string
         enum: ['m.typing']
         description: The string `m.typing`
         example: "m.typing"