diff --git a/app/chat_qa/deduplication_qa/d_qa.py b/app/chat_qa/deduplication_qa/d_qa.py
index 9a1b1b6..b00bd14 100644
--- a/app/chat_qa/deduplication_qa/d_qa.py
+++ b/app/chat_qa/deduplication_qa/d_qa.py
@@ -101,7 +101,7 @@ async def select_best_qa(qa_group: list) -> str:
 3. **信息密度**：单位字数内有效信息更多，无冗余废话
 4. **实用性**：对用户实际解决问题的帮助程度
 {qa_text}
-请直接输出最完整结果。格式：{"question": "xxxxx", "answer": "bbbb"}
+请直接输出最完整结果。格式：{{"question": "xxxxx", "answer": "bbbb"}}
 """
 
     prompt = PromptTemplate(template=prompt, input_variables=["qa_text"])
diff --git a/app/chat_qa/graph.py b/app/chat_qa/graph.py
index c87c61e..b4cbc84 100644
--- a/app/chat_qa/graph.py
+++ b/app/chat_qa/graph.py
@@ -65,8 +65,8 @@ if __name__ == '__main__':
         await embedding_client.close()
 
 
-    start = datetime(2026, 5, 29)
-    end = datetime(2026, 6, 16)
+    start = datetime(2026, 6, 23)
+    end = datetime(2026, 6, 25)
 
     result = []
     temp = start
diff --git a/app/dto/quality_score.py b/app/dto/quality_score.py
index 09ab1ee..a0080de 100644
--- a/app/dto/quality_score.py
+++ b/app/dto/quality_score.py
@@ -25,4 +25,4 @@ class QualityScore:
             self.clarity
         ]
         valid_scores = [s if s is not None else 0 for s in scores]
-        return sum(s * w for s, w in zip(valid_scores, weights)) * 10  # 转换为百分制
\ No newline at end of file
+        return sum(float(s) * w for s, w in zip(valid_scores, weights)) * 10  # 转换为百分制
\ No newline at end of file