diff --git a/data/schemas/oauth2-account-management-action.yaml b/data/schemas/oauth2-account-management-action.yaml
index a63660fc..299a73b6 100644
--- a/data/schemas/oauth2-account-management-action.yaml
+++ b/data/schemas/oauth2-account-management-action.yaml
@@ -1,3 +1,16 @@
+# Copyright 2026 The Matrix.org Foundation C.I.C.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 type: string
 enum:
   - "org.matrix.profile"
diff --git a/data/schemas/oauth2-account-management-server-metadata.yaml b/data/schemas/oauth2-account-management-server-metadata.yaml
index 89e740ad..56672911 100644
--- a/data/schemas/oauth2-account-management-server-metadata.yaml
+++ b/data/schemas/oauth2-account-management-server-metadata.yaml
@@ -1,3 +1,16 @@
+# Copyright 2026 The Matrix.org Foundation C.I.C.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 type: object
 title: OAuth 2.0 Server Metadata Account Management Extension
 properties:
diff --git a/data/schemas/oauth2-account-management-url.yaml b/data/schemas/oauth2-account-management-url.yaml
index aef3b6d5..797b80ed 100644
--- a/data/schemas/oauth2-account-management-url.yaml
+++ b/data/schemas/oauth2-account-management-url.yaml
@@ -1,3 +1,16 @@
+# Copyright 2026 The Matrix.org Foundation C.I.C.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 type: object
 title: OAuth 2.0 Account Management URL Query Parameters
 properties: