diff --git a/libs/sdk-js/src/types.ts b/libs/sdk-js/src/types.ts
index 6945e9eba..b3803d812 100644
--- a/libs/sdk-js/src/types.ts
+++ b/libs/sdk-js/src/types.ts
@@ -19,7 +19,7 @@ export type StreamEvent =
 
 export interface Send {
   node: string;
-  input: Record<string, unknown> | null;
+  input: unknown | null;
 }
 
 export interface Command {