diff --git a/src/client.ts b/src/client.ts
index 68323ae..5e81957 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -270,12 +270,13 @@ export class SDKSignerClient {
   /**
    * Update a process
    */
-  async updateProcess(processId: string, stateId: string, data: any): Promise<ServerResponse> {
+  async updateProcess(processId: string, newData: { [label: string]: any }, privateFields: string[], roles: any | null): Promise<ServerResponse> {
     const message: ClientMessage = {
       type: MessageType.UPDATE_PROCESS,
       processId,
-      stateId,
-      ...data,
+      newData,
+      privateFields,
+      roles,
       messageId: this.generateMessageId()
     };