diff --git a/app/controllers/api/conferences_controller.rb b/app/controllers/api/conferences_controller.rb
index 116570c..b33358a 100644
--- a/app/controllers/api/conferences_controller.rb
+++ b/app/controllers/api/conferences_controller.rb
@@ -3,5 +3,6 @@ class Api::ConferencesController < Api::ApplicationController
 
   def index
     @conferences = Conference.all
+    fresh_when @conferences
   end
 end
diff --git a/app/controllers/api/event_types_controller.rb b/app/controllers/api/event_types_controller.rb
index 1df244f..58f4b0d 100644
--- a/app/controllers/api/event_types_controller.rb
+++ b/app/controllers/api/event_types_controller.rb
@@ -5,5 +5,6 @@ class Api::EventTypesController < Api::ApplicationController
 
   def index
     @event_types = current_conference.event_types.includes(:translations)
+    fresh_when @event_types
   end
 end
diff --git a/app/controllers/api/halls_controller.rb b/app/controllers/api/halls_controller.rb
index e90cabd..7a7d625 100644
--- a/app/controllers/api/halls_controller.rb
+++ b/app/controllers/api/halls_controller.rb
@@ -5,5 +5,6 @@ class Api::HallsController < Api::ApplicationController
 
   def index
     @halls = current_conference.halls
+    fresh_when @halls
   end
 end
diff --git a/app/controllers/api/slots_controller.rb b/app/controllers/api/slots_controller.rb
index 4378f83..2ce9dd3 100644
--- a/app/controllers/api/slots_controller.rb
+++ b/app/controllers/api/slots_controller.rb
@@ -5,5 +5,7 @@ class Api::SlotsController < Api::ApplicationController
 
   def index
     @slots = current_conference.slots
+
+    fresh_when @slots
   end
 end
diff --git a/app/controllers/api/speakers_controller.rb b/app/controllers/api/speakers_controller.rb
index 825653e..128eafe 100644
--- a/app/controllers/api/speakers_controller.rb
+++ b/app/controllers/api/speakers_controller.rb
@@ -5,5 +5,6 @@ class Api::SpeakersController < Api::ApplicationController
 
   def index
     @speakers = PersonalProfile.joins(user: {participations: {event: :proposition}}).where(events: {id: current_conference.approved_events.pluck(:id)}, conference: current_conference).distinct
+    fresh_when @speakers
   end
 end
diff --git a/app/controllers/api/tracks_controller.rb b/app/controllers/api/tracks_controller.rb
index fd4ae1a..21ec2f4 100644
--- a/app/controllers/api/tracks_controller.rb
+++ b/app/controllers/api/tracks_controller.rb
@@ -5,5 +5,6 @@ class Api::TracksController < Api::ApplicationController
 
   def index
     @tracks = current_conference.tracks.includes(:translations)
+    fresh_when @tracks
   end
 end