diff --git a/ChangeLog.txt b/ChangeLog.txt
index 5feb931e20..f47cffc373 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -1,3 +1,7 @@
+2020-05-17 Version: v1.61.198
+- Generated 2020-05-15 for `Vcs`.
+- Open API publish.
+
 2020-05-17 Version: v1.61.197
 - Generated 2020-05-15 for `Vcs`.
 - Open API publish.
diff --git a/services/vcs/add_device.go b/services/vcs/add_device.go
index 215998f286..d9b11d1de1 100644
--- a/services/vcs/add_device.go
+++ b/services/vcs/add_device.go
@@ -102,7 +102,7 @@ func CreateAddDeviceRequest() (request *AddDeviceRequest) {
 	request = &AddDeviceRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "AddDevice", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "AddDevice", "vcs", "openAPI")
 	return
 }
 
diff --git a/services/vcs/create_corp.go b/services/vcs/create_corp.go
index 12ac8e5d15..09b7c4b2d3 100644
--- a/services/vcs/create_corp.go
+++ b/services/vcs/create_corp.go
@@ -96,7 +96,7 @@ func CreateCreateCorpRequest() (request *CreateCorpRequest) {
 	request = &CreateCorpRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "CreateCorp", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "CreateCorp", "vcs", "openAPI")
 	return
 }
 
diff --git a/services/vcs/delete_device.go b/services/vcs/delete_device.go
index 5f663e8f42..112d87d9b8 100644
--- a/services/vcs/delete_device.go
+++ b/services/vcs/delete_device.go
@@ -94,7 +94,7 @@ func CreateDeleteDeviceRequest() (request *DeleteDeviceRequest) {
 	request = &DeleteDeviceRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "DeleteDevice", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "DeleteDevice", "vcs", "openAPI")
 	return
 }
 
diff --git a/services/vcs/get_device_live_url.go b/services/vcs/get_device_live_url.go
index 4c288cf28b..764508a77e 100644
--- a/services/vcs/get_device_live_url.go
+++ b/services/vcs/get_device_live_url.go
@@ -95,7 +95,7 @@ func CreateGetDeviceLiveUrlRequest() (request *GetDeviceLiveUrlRequest) {
 	request = &GetDeviceLiveUrlRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "GetDeviceLiveUrl", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "GetDeviceLiveUrl", "vcs", "openAPI")
 	return
 }
 
diff --git a/services/vcs/get_inventory.go b/services/vcs/get_inventory.go
index e5d15ed00a..f4ef1ee50b 100644
--- a/services/vcs/get_inventory.go
+++ b/services/vcs/get_inventory.go
@@ -91,7 +91,7 @@ func CreateGetInventoryRequest() (request *GetInventoryRequest) {
 	request = &GetInventoryRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "GetInventory", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "GetInventory", "vcs", "openAPI")
 	return
 }
 
diff --git a/services/vcs/list_corps.go b/services/vcs/list_corps.go
index 75e99f3a9c..cae0a3428f 100644
--- a/services/vcs/list_corps.go
+++ b/services/vcs/list_corps.go
@@ -94,7 +94,7 @@ func CreateListCorpsRequest() (request *ListCorpsRequest) {
 	request = &ListCorpsRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "ListCorps", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "ListCorps", "vcs", "openAPI")
 	return
 }
 
diff --git a/services/vcs/list_devices.go b/services/vcs/list_devices.go
index 6b01dc3908..b50b9d4962 100644
--- a/services/vcs/list_devices.go
+++ b/services/vcs/list_devices.go
@@ -97,7 +97,7 @@ func CreateListDevicesRequest() (request *ListDevicesRequest) {
 	request = &ListDevicesRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "ListDevices", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "ListDevices", "vcs", "openAPI")
 	return
 }
 
diff --git a/services/vcs/recognize_image.go b/services/vcs/recognize_image.go
index 32608daa6c..73c4a33476 100644
--- a/services/vcs/recognize_image.go
+++ b/services/vcs/recognize_image.go
@@ -95,7 +95,7 @@ func CreateRecognizeImageRequest() (request *RecognizeImageRequest) {
 	request = &RecognizeImageRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "RecognizeImage", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "RecognizeImage", "vcs", "openAPI")
 	return
 }
 
diff --git a/services/vcs/search_face.go b/services/vcs/search_face.go
index e49c3fe0d8..d44d53ff11 100644
--- a/services/vcs/search_face.go
+++ b/services/vcs/search_face.go
@@ -99,7 +99,7 @@ func CreateSearchFaceRequest() (request *SearchFaceRequest) {
 	request = &SearchFaceRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "SearchFace", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "SearchFace", "vcs", "openAPI")
 	return
 }
 
diff --git a/services/vcs/update_corp.go b/services/vcs/update_corp.go
index 57c9bc04a8..e0828a5b75 100644
--- a/services/vcs/update_corp.go
+++ b/services/vcs/update_corp.go
@@ -97,7 +97,7 @@ func CreateUpdateCorpRequest() (request *UpdateCorpRequest) {
 	request = &UpdateCorpRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "UpdateCorp", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "UpdateCorp", "vcs", "openAPI")
 	return
 }
 
diff --git a/services/vcs/update_device.go b/services/vcs/update_device.go
index 3072b4bab6..e36b47de29 100644
--- a/services/vcs/update_device.go
+++ b/services/vcs/update_device.go
@@ -102,7 +102,7 @@ func CreateUpdateDeviceRequest() (request *UpdateDeviceRequest) {
 	request = &UpdateDeviceRequest{
 		RpcRequest: &requests.RpcRequest{},
 	}
-	request.InitWithApiInfo("Vcs", "2020-05-15", "UpdateDevice", "VCS", "openAPI")
+	request.InitWithApiInfo("Vcs", "2020-05-15", "UpdateDevice", "vcs", "openAPI")
 	return
 }