diff --git a/backend/.env.example b/backend/.env.example
index 3eb0d8c..f394aea 100644
--- a/backend/.env.example
+++ b/backend/.env.example
@@ -8,7 +8,7 @@ SQLITE_DATABASE_URL=sqlite:///./source.db
 TOP_K=10
 #--------------------------
 # 是否启用混合检索
-HYBRID_ENABLED = false
+HYBRID_ENABLED = true
 # 混合检索阈值
 HYBRID_ALPHA = 0.6
 # 是否启用检索重排功能
diff --git a/backend/modelProvide/customDashScope.py b/backend/modelProvide/customDashScope.py
index 6eddd20..193f64d 100644
--- a/backend/modelProvide/customDashScope.py
+++ b/backend/modelProvide/customDashScope.py
@@ -38,7 +38,7 @@ DASHSCOPE_MODEL_META = {
         "is_chat_model": True,
     },
     DashScopeGenerationModels.QWEN2_MATH_72B_INSTRUCT: {
-        "context_window": 1024 * 8,
+        "context_window": 1024 * 2,
         "num_output": 1024 * 8,
         "is_chat_model": True,
     },