1 files changed, 8 insertions, 1 deletions
diff --git a/lib/api/api.rb b/lib/api/api.rb
index 6cf6b501021..1950d2791ab 100644
--- a/lib/api/api.rb
+++ b/lib/api/api.rb
@@ -1,7 +1,14 @@
 module API
   class API < Grape::API
     include APIGuard
-    version 'v3', using: :path
+
+    version %w(v3 v4), using: :path
+
+    version 'v3', using: :path do
+      mount ::API::V3::Issues
+      mount ::API::V3::MergeRequests
+      mount ::API::V3::Projects
+    end
 
     before { allow_access_with_scope :api }