diff --git a/pb/contract/contract.pb.go b/pb/contract/contract.pb.go
index 5a76445..95acd83 100644
--- a/pb/contract/contract.pb.go
+++ b/pb/contract/contract.pb.go
@@ -688,7 +688,7 @@ type FinishContractRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	TransactionId string `protobuf:"bytes,1,opt,name=TransactionId,json=transaction_id,proto3" json:"TransactionId,omitempty"`
+	TransactionId string `protobuf:"bytes,1,opt,name=transactionId,json=transaction_id,proto3" json:"transactionId,omitempty"`
 }
 
 func (x *FinishContractRequest) Reset() {
@@ -1456,7 +1456,7 @@ var file_contract_proto_rawDesc = []byte{
 	0x09, 0x52, 0x08, 0x6a, 0x75, 0x6d, 0x70, 0x5f, 0x75, 0x72, 0x6c, 0x12, 0x10, 0x0a, 0x03, 0x4d,
 	0x73, 0x67, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6d, 0x73, 0x67, 0x22, 0x3e, 0x0a,
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+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x25, 0x0a, 0x0d, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x61,
 	0x63, 0x74, 0x69, 0x6f, 0x6e, 0x49, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0e, 0x74,
 	0x72, 0x61, 0x6e, 0x73, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x5f, 0x69, 0x64, 0x22, 0x5b, 0x0a,
 	0x15, 0x46, 0x69, 0x6e, 0x69, 0x73, 0x68, 0x43, 0x6f, 0x6e, 0x74, 0x72, 0x61, 0x63, 0x74, 0x52,
diff --git a/pb/contract/contract.proto b/pb/contract/contract.proto
index 837c7c9..5e36473 100644
--- a/pb/contract/contract.proto
+++ b/pb/contract/contract.proto
@@ -85,7 +85,7 @@ message SignContractRespond {
 }
 
 message FinishContractRequest {
-   string TransactionId = 1  [json_name="transaction_id"];
+   string transactionId = 1  [json_name="transaction_id"];
 }
 
 message FinishContractRespond {