diff --git a/components/kanban/SwimlanesBoard.tsx b/components/kanban/SwimlanesBoard.tsx
index 61cfc25..2bc61ba 100644
--- a/components/kanban/SwimlanesBoard.tsx
+++ b/components/kanban/SwimlanesBoard.tsx
@@ -222,11 +222,12 @@ export function SwimlanesBoard({
       <div className="flex-1 overflow-y-auto px-6">
         <div className="space-y-4">
           {Object.entries(tasksByTag)
-            .sort(([a], [b]) => {
+            .sort(([a, tasksA], [b, tasksB]) => {
               // Mettre "Sans tag" à la fin
               if (a === 'Sans tag') return 1;
               if (b === 'Sans tag') return -1;
-              return a.localeCompare(b);
+              // Trier par nombre de tâches (décroissant)
+              return tasksB.length - tasksA.length;
             })
             .map(([tagName, tagTasks]) => (
             <div key={tagName} className="border border-slate-700/50 rounded-lg bg-slate-900/30">