diff --git a/python_ml/main.py b/python_ml/main.py
index 21565a2..eede93d 100644
--- a/python_ml/main.py
+++ b/python_ml/main.py
@@ -62,6 +62,9 @@ app.add_middleware(
 # Global instances - Try hybrid first, fallback to legacy
 USE_HYBRID_DETECTOR = os.getenv("USE_HYBRID_DETECTOR", "true").lower() == "true"
 
+# Model version based on detector type
+MODEL_VERSION = "2.0.0" if USE_HYBRID_DETECTOR else "1.0.0"
+
 if USE_HYBRID_DETECTOR:
     print("[ML] Using Hybrid ML Detector (Extended Isolation Forest + Feature Selection)")
     ml_detector = MLHybridDetector(model_dir="models")
@@ -212,7 +215,7 @@ async def train_model(request: TrainRequest, background_tasks: BackgroundTasks):
                     (model_version, records_processed, features_count, training_duration, status, notes)
                     VALUES (%s, %s, %s, %s, %s, %s)
                 """, (
-                    "1.0.0",
+                    MODEL_VERSION,
                     len(df),
                     0,
                     0,
@@ -232,7 +235,7 @@ async def train_model(request: TrainRequest, background_tasks: BackgroundTasks):
                 (model_version, records_processed, features_count, training_duration, status, notes)
                 VALUES (%s, %s, %s, %s, %s, %s)
             """, (
-                "1.0.0",
+                MODEL_VERSION,
                 result['records_processed'],
                 result['features_count'],
                 0,  # duration non ancora implementato