diff --git a/app/presenters/publishing_api/case_study_presenter.rb b/app/presenters/publishing_api/case_study_presenter.rb
index 51a33f055bd..62abad7aaff 100644
--- a/app/presenters/publishing_api/case_study_presenter.rb
+++ b/app/presenters/publishing_api/case_study_presenter.rb
@@ -22,7 +22,7 @@ def content
           details:,
           document_type:,
           public_updated_at: item.public_timestamp || item.updated_at,
-          rendering_app: Whitehall::RenderingApp::GOVERNMENT_FRONTEND,
+          rendering_app: Whitehall::RenderingApp::FRONTEND,
           schema_name: "case_study",
           auth_bypass_ids: [item.auth_bypass_id],
         )
diff --git a/test/unit/app/presenters/publishing_api/case_study_presenter_test.rb b/test/unit/app/presenters/publishing_api/case_study_presenter_test.rb
index 242ddcd2d12..1a3ddb9173b 100644
--- a/test/unit/app/presenters/publishing_api/case_study_presenter_test.rb
+++ b/test/unit/app/presenters/publishing_api/case_study_presenter_test.rb
@@ -23,7 +23,7 @@ def present(edition)
       locale: "en",
       public_updated_at: case_study.public_timestamp,
       publishing_app: Whitehall::PublishingApp::WHITEHALL,
-      rendering_app: "government-frontend",
+      rendering_app: "frontend",
       routes: [
         { path: public_path, type: "exact" },
       ],