diff --git a/CHANGELOG.md b/CHANGELOG.md
index c4569ec32..066b9b4d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## 1.7.177 - 2019-11-26
+- Modify QueryBill, add SubOrderId in item of response.
+
+
 ## 1.7.176 - 2019-11-26
 - Supported API BindInstanceDomains.
 - Supported API UnbindInstanceDomains.
diff --git a/src/BssOpenApi/V20171214/BssOpenApiApiResolver.php b/src/BssOpenApi/V20171214/BssOpenApiApiResolver.php
index 0e0cddaca..b5e07e46d 100644
--- a/src/BssOpenApi/V20171214/BssOpenApiApiResolver.php
+++ b/src/BssOpenApi/V20171214/BssOpenApiApiResolver.php
@@ -50,6 +50,7 @@
  * @method QueryRedeem queryRedeem(array $options = [])
  * @method QueryResellerAvailableQuota queryResellerAvailableQuota(array $options = [])
  * @method QueryResourcePackageInstances queryResourcePackageInstances(array $options = [])
+ * @method QueryRIUtilizationDetail queryRIUtilizationDetail(array $options = [])
  * @method QuerySettlementBill querySettlementBill(array $options = [])
  * @method QueryUserOmsData queryUserOmsData(array $options = [])
  * @method RenewInstance renewInstance(array $options = [])
@@ -998,6 +999,28 @@ class QueryResourcePackageInstances extends Rpc
 {
 }
 
+/**
+ * @method string getDeductedInstanceId()
+ * @method $this withDeductedInstanceId($value)
+ * @method string getInstanceSpec()
+ * @method $this withInstanceSpec($value)
+ * @method string getEndTime()
+ * @method $this withEndTime($value)
+ * @method string getRIInstanceId()
+ * @method $this withRIInstanceId($value)
+ * @method string getStartTime()
+ * @method $this withStartTime($value)
+ * @method string getPageNum()
+ * @method $this withPageNum($value)
+ * @method string getPageSize()
+ * @method $this withPageSize($value)
+ * @method string getRICommodityCode()
+ * @method $this withRICommodityCode($value)
+ */
+class QueryRIUtilizationDetail extends Rpc
+{
+}
+
 /**
  * @method string getProductCode()
  * @method $this withProductCode($value)
diff --git a/src/Release.php b/src/Release.php
index f6942c915..452b77ee3 100644
--- a/src/Release.php
+++ b/src/Release.php
@@ -16,7 +16,7 @@ class Release
     /**
      * Version of the SDK
      */
-    const VERSION = '1.7.176';
+    const VERSION = '1.7.177';
 
     /**
      * @param Event $event