diff --git a/README.md b/README.md
index f3dc199..0b43f94 100644
--- a/README.md
+++ b/README.md
@@ -99,7 +99,7 @@ collection.insert([
 
 # Search by vector similarity
 results = collection.query(
-    zvec.VectorQuery("embedding", vector=[0.4, 0.3, 0.3, 0.1]),
+    zvec.Query(field_name="embedding", vector=[0.4, 0.3, 0.3, 0.1]),
     topk=10
 )
 
diff --git a/README_CN.md b/README_CN.md
index 97fa598..0838de8 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -99,7 +99,7 @@ collection.insert([
 
 # 向量相似度检索
 results = collection.query(
-    zvec.VectorQuery("embedding", vector=[0.4, 0.3, 0.3, 0.1]),
+    zvec.Query(field_name="embedding", vector=[0.4, 0.3, 0.3, 0.1]),
     topk=10
 )