diff --git a/backend/app/controllers/wiki_pages_controller.rb b/backend/app/controllers/wiki_pages_controller.rb
index c4dedf0..c69a417 100644
--- a/backend/app/controllers/wiki_pages_controller.rb
+++ b/backend/app/controllers/wiki_pages_controller.rb
@@ -161,8 +161,9 @@ class WikiPagesController < ApplicationController
       revision_id = rev.id
       pred = page.pred_revision_id(revision_id)
       succ = page.succ_revision_id(revision_id)
+      updated_at = rev.created_at
 
-      return render json: page.as_json.merge(body:, revision_id:, pred:, succ:)
+      return render json: page.as_json.merge(body:, revision_id:, pred:, succ:, updated_at:)
     end
 
     rev = page.current_revision
@@ -180,8 +181,9 @@ class WikiPagesController < ApplicationController
     revision_id = rev.id
     pred = page.pred_revision_id(revision_id)
     succ = page.succ_revision_id(revision_id)
+    updated_at = rev.created_at
 
-    render json: page.as_json.merge(body:, revision_id:, pred:, succ:)
+    render json: page.as_json.merge(body:, revision_id:, pred:, succ:, updated_at:)
   end
 
   def render_wiki_conflict err