diff --git a/api/swagger/swagger-v1.yaml b/api/swagger/swagger-v1.yaml
index 7993a739..87402a2b 100644
--- a/api/swagger/swagger-v1.yaml
+++ b/api/swagger/swagger-v1.yaml
@@ -8194,6 +8194,15 @@ paths:
           required: true
           schema:
             type: string
+        - name: user_id
+          in: query
+          description:
+            The user ID of the user making the request. Required for
+            personalization of related users (e.g. does_current_user_follow)
+            in the response, and may differ from the path user_id when a
+            manager is reading a managed user's notifications.
+          schema:
+            type: string
         - name: timestamp
           in: query
           description: The timestamp from which to paginate
@@ -8287,6 +8296,15 @@ paths:
           required: true
           schema:
             type: string
+        - name: user_id
+          in: query
+          description:
+            The user ID of the user making the request. Required for
+            personalization of related users (e.g. does_current_user_follow)
+            in the response, and may differ from the path user_id when a
+            manager is reading a managed user's playlist updates.
+          schema:
+            type: string
       responses:
         "200":
           description: Success