diff --git a/types.ts b/types.ts
index ca4c1cd..89be6e0 100644
--- a/types.ts
+++ b/types.ts
@@ -24,6 +24,7 @@ export namespace ExpectedExports {
   export type migration = (
     effects: Effects,
     version: string,
+    options?: any,
   ) => Promise<ResultType<MigrationRes>>;
   export type action = {
     [id: string]: (