diff --git a/src/feature/core/invoice/domain/usecase/create-invoice-usecase.ts b/src/feature/core/invoice/domain/usecase/create-invoice-usecase.ts
index 394b4ed..7c2f136 100644
--- a/src/feature/core/invoice/domain/usecase/create-invoice-usecase.ts
+++ b/src/feature/core/invoice/domain/usecase/create-invoice-usecase.ts
@@ -2,7 +2,7 @@
 
 import { ApiEither } from "@/feature/common/data/api-task";
 import ParamsFailure from "@/feature/common/failures/params-failure";
-// import serverDi from "@/feature/common/server-di";
+import serverDi from "@/feature/common/server-di";
 import InvoiceRepo, {
   invoiceRepoKey,
 } from "@/feature/core/invoice/domain/i-repo/invoice-repo";
@@ -17,17 +17,16 @@ import { chain, fromNullable, left, map, right } from "fp-ts/lib/TaskEither";
 export default async function createInvoiceUsecase(
   params: InvoiceParam,
 ): Promise<ApiEither<string>> {
-  return right("fixed")()
-  // const repo = serverDi(invoiceModuleKey).resolve<InvoiceRepo>(invoiceRepoKey);
+  const repo = serverDi(invoiceModuleKey).resolve<InvoiceRepo>(invoiceRepoKey);
 
-  // return pipe(
-  //   fromNullable(new ParamsFailure())(params),
-  //   map((params) => invoiceSchema.safeParse(params)),
-  //   chain((params) => {
-  //     const isParamsValid = invoiceSchema.safeParse(params);
-  //     if (!isParamsValid.success) left(new ParamsFailure());
-  //     return right(params.data as InvoiceParam);
-  //   }),
-  //   chain((params) => repo.createInvoice(params)),
-  // )();
+  return pipe(
+    fromNullable(new ParamsFailure())(params),
+    map((params) => invoiceSchema.safeParse(params)),
+    chain((params) => {
+      const isParamsValid = invoiceSchema.safeParse(params);
+      if (!isParamsValid.success) left(new ParamsFailure());
+      return right(params.data as InvoiceParam);
+    }),
+    chain((params) => repo.createInvoice(params)),
+  )();
 }