diff --git a/packages/sdk-ts/src/core/modules/wasm/exec-args/ExecArgNeptuneDeposit.ts b/packages/sdk-ts/src/core/modules/wasm/exec-args/ExecArgNeptuneDeposit.ts
index 3cd75205b..76a74956a 100644
--- a/packages/sdk-ts/src/core/modules/wasm/exec-args/ExecArgNeptuneDeposit.ts
+++ b/packages/sdk-ts/src/core/modules/wasm/exec-args/ExecArgNeptuneDeposit.ts
@@ -2,7 +2,7 @@ import {
   dataToExecData,
   ExecArgBase,
   ExecDataRepresentation,
-} from '../ExecArgBase'
+} from '../ExecArgBase.js'
 
 export declare namespace ExecArgNeptuneDeposit {
   export interface Params {}
diff --git a/packages/sdk-ts/src/core/modules/wasm/exec-args/ExecArgNeptuneWithdraw.ts b/packages/sdk-ts/src/core/modules/wasm/exec-args/ExecArgNeptuneWithdraw.ts
index 287dd389b..2a4133fcc 100644
--- a/packages/sdk-ts/src/core/modules/wasm/exec-args/ExecArgNeptuneWithdraw.ts
+++ b/packages/sdk-ts/src/core/modules/wasm/exec-args/ExecArgNeptuneWithdraw.ts
@@ -2,7 +2,7 @@ import {
   ExecArgBase,
   dataToExecData,
   ExecDataRepresentation,
-} from '../ExecArgBase'
+} from '../ExecArgBase.js'
 import { toBase64 } from '../../../../utils'