diff --git a/src/backend/src/gitea.js b/src/backend/src/gitea.js
index 45009ab..391f19f 100644
--- a/src/backend/src/gitea.js
+++ b/src/backend/src/gitea.js
@@ -78,8 +78,10 @@ function toDurationSeconds(startedAt, completedAt) {
 
 /** Normalise les exécutions CI pour le webhook et le dashboard. */
 function normalizeWorkflowRun(run) {
-  const startedAt = run.run_started_at || run.started_at || null;
-  const completedAt = run.updated_at || (run.status === 'completed' ? run.created_at : null);
+  // Gitea 1.25 renvoie started_at/completed_at (et non les champs GitHub).
+  // Les aliases conservent la compatibilité avec d’éventuelles versions futures.
+  const startedAt = run.started_at || run.run_started_at || null;
+  const completedAt = run.completed_at || run.run_completed_at || run.updated_at || null;
   return {
     id: run.id,
     name: run.name || run.workflow_id || 'Validation CI',
diff --git a/src/backend/test/gitea.test.js b/src/backend/test/gitea.test.js
index b2cee00..fd047c6 100644
--- a/src/backend/test/gitea.test.js
+++ b/src/backend/test/gitea.test.js
@@ -7,9 +7,8 @@ const run = normalizeWorkflowRun({
   status: 'completed',
   conclusion: 'success',
   head_sha: 'abcdef123456',
-  created_at: '2026-08-18T10:00:00Z',
-  run_started_at: '2026-08-18T10:00:10Z',
-  updated_at: '2026-08-18T10:02:15Z',
+  started_at: '2026-08-18T10:00:10Z',
+  completed_at: '2026-08-18T10:02:15Z',
 });
 
 assert.equal(run.commit, 'abcdef123456');