diff --git a/services/training/app/services/training_service.py b/services/training/app/services/training_service.py
index e5d0b2a0..156aa682 100644
--- a/services/training/app/services/training_service.py
+++ b/services/training/app/services/training_service.py
@@ -236,6 +236,11 @@ class EnhancedTrainingService:
                     job_id, PROGRESS_ML_TRAINING_START, "ml_training", "running"
                 )
 
+                # ✅ FIX: Commit the session to prevent deadlock with trainer's nested session
+                # The trainer creates its own session, so we need to ensure this update is committed
+                await session.commit()
+                logger.debug("Committed session after ml_training progress update")
+
                 training_results = await self.trainer.train_tenant_models(
                     tenant_id=tenant_id,
                     training_dataset=training_dataset,