diff --git a/crates/graphql/schema.graphql b/crates/graphql/schema.graphql
index 3d3eb1e6e..316b5977e 100644
--- a/crates/graphql/schema.graphql
+++ b/crates/graphql/schema.graphql
@@ -2,7 +2,7 @@
 An authentication records when a user enter their credential in a browser
 session.
 """
-type Authentication implements CreationEvent & Node {
+type Authentication implements Node {
 	"""
 	ID of the object.
 	"""
@@ -17,7 +17,7 @@ type Authentication implements CreationEvent & Node {
 """
 A browser session represents a logged in user in a browser.
 """
-type BrowserSession implements Node & CreationEvent {
+type BrowserSession implements Node {
 	"""
 	ID of the object.
 	"""
@@ -69,7 +69,7 @@ type BrowserSessionEdge {
 A compat session represents a client session which used the legacy Matrix
 login API.
 """
-type CompatSession implements Node & CreationEvent {
+type CompatSession implements Node {
 	"""
 	ID of the object.
 	"""
@@ -153,13 +153,6 @@ type CompatSsoLoginEdge {
 	node: CompatSsoLogin!
 }
 
-interface CreationEvent {
-	"""
-	When the object was created.
-	"""
-	createdAt: DateTime!
-}
-
 """
 Implement the DateTime<Utc> scalar
 
@@ -346,7 +339,7 @@ type User implements Node {
 """
 A user email address
 """
-type UserEmail implements CreationEvent & Node {
+type UserEmail implements Node {
 	"""
 	ID of the object.
 	"""
diff --git a/crates/graphql/src/lib.rs b/crates/graphql/src/lib.rs
index 93037aa6f..bf4b623d1 100644
--- a/crates/graphql/src/lib.rs
+++ b/crates/graphql/src/lib.rs
@@ -24,7 +24,6 @@
 
 use async_graphql::{Context, Description, EmptyMutation, EmptySubscription};
 use mas_axum_utils::SessionInfo;
-use model::CreationEvent;
 use sqlx::PgPool;
 
 use self::model::{BrowserSession, Node, User};
@@ -38,7 +37,8 @@ pub type SchemaBuilder = async_graphql::SchemaBuilder<RootQuery, EmptyMutation,
 pub fn schema_builder() -> SchemaBuilder {
     async_graphql::Schema::build(RootQuery::new(), EmptyMutation, EmptySubscription)
         .register_output_type::<Node>()
-        .register_output_type::<CreationEvent>()
+    // TODO: ordering of interface implementations is not stable
+    //.register_output_type::<CreationEvent>()
 }
 
 /// The query root of the GraphQL interface.