diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed0d1e73d..4192cd0b1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 - Do not display the type in the plans list
 - Fix a bug: a message tells that creating a new plan fails, but it worked
 - Fix a bug: unable to select no category in plan creation/edition after a category selection 
+- Fix a bug: the training validation modal shows cancelled trainings 
 
 ## v5.0.3 2021 June 14
 
diff --git a/app/controllers/api/trainings_controller.rb b/app/controllers/api/trainings_controller.rb
index c0ba04b19..af36f907b 100644
--- a/app/controllers/api/trainings_controller.rb
+++ b/app/controllers/api/trainings_controller.rb
@@ -60,7 +60,8 @@ class API::TrainingsController < API::ApiController
     @training = Training.find(params[:id])
     @availabilities = @training.availabilities
                                .includes(slots: { reservations: { statistic_profile: [:trainings, user: [:profile]] } })
-                               .order('start_at DESC')
+                               .where('slots.canceled_at': nil)
+                               .order('availabilities.start_at DESC')
   end
 
   private