diff --git a/build-system/taler-build-scripts b/build-system/taler-build-scripts
index 001f5dd08..23538677f 160000
--- a/build-system/taler-build-scripts
+++ b/build-system/taler-build-scripts
@@ -1 +1 @@
-Subproject commit 001f5dd081fc8729ff8def90c4a1c3f93eb8689a
+Subproject commit 23538677f6c6be2a62f38dc6137ecdd1c76b7b15
diff --git a/packages/taler-util/src/wallet-types.ts b/packages/taler-util/src/wallet-types.ts
index c6f19c73f..f7bd3d120 100644
--- a/packages/taler-util/src/wallet-types.ts
+++ b/packages/taler-util/src/wallet-types.ts
@@ -57,7 +57,9 @@ import {
   DenomKeyType,
   DenominationPubKey,
   ExchangeAuditor,
+  InternationalizedString,
   MerchantContractTerms,
+  MerchantInfo,
   PeerContractTerms,
   UnblindedSignature,
   codecForMerchantContractTerms,
@@ -2667,3 +2669,49 @@ export const codecForTestingSetTimetravelRequest =
     buildCodecForObject<TestingSetTimetravelRequest>()
       .property("offsetMs", codecForNumber())
       .build("TestingSetTimetravelRequest");
+
+export interface AllowedAuditorInfo {
+  auditorBaseUrl: string;
+  auditorPub: string;
+}
+
+export interface AllowedExchangeInfo {
+  exchangeBaseUrl: string;
+  exchangePub: string;
+}
+
+/**
+ * Data extracted from the contract terms that is relevant for payment
+ * processing in the wallet.
+ */
+export interface WalletContractData {
+  /**
+   * Fulfillment URL, or the empty string if the order has no fulfillment URL.
+   *
+   * Stored as a non-nullable string as we use this field for IndexedDB indexing.
+   */
+  fulfillmentUrl: string;
+
+  contractTermsHash: string;
+  fulfillmentMessage?: string;
+  fulfillmentMessageI18n?: InternationalizedString;
+  merchantSig: string;
+  merchantPub: string;
+  merchant: MerchantInfo;
+  amount: AmountString;
+  orderId: string;
+  merchantBaseUrl: string;
+  summary: string;
+  summaryI18n: { [lang_tag: string]: string } | undefined;
+  autoRefund: TalerProtocolDuration | undefined;
+  maxWireFee: AmountString;
+  wireFeeAmortization: number;
+  payDeadline: TalerProtocolTimestamp;
+  refundDeadline: TalerProtocolTimestamp;
+  allowedExchanges: AllowedExchangeInfo[];
+  timestamp: TalerProtocolTimestamp;
+  wireMethod: string;
+  wireInfoHash: string;
+  maxDepositFee: AmountString;
+  minimumAge?: number;
+}
diff --git a/packages/taler-wallet-core/src/db.ts b/packages/taler-wallet-core/src/db.ts
index 3a8109320..ba1f5b8c0 100644
--- a/packages/taler-wallet-core/src/db.ts
+++ b/packages/taler-wallet-core/src/db.ts
@@ -1035,52 +1035,6 @@ export enum RefundReason {
   AbortRefund = "abort-pay-refund",
 }
 
-export interface AllowedAuditorInfo {
-  auditorBaseUrl: string;
-  auditorPub: string;
-}
-
-export interface AllowedExchangeInfo {
-  exchangeBaseUrl: string;
-  exchangePub: string;
-}
-
-/**
- * Data extracted from the contract terms that is relevant for payment
- * processing in the wallet.
- */
-export interface WalletContractData {
-  /**
-   * Fulfillment URL, or the empty string if the order has no fulfillment URL.
-   *
-   * Stored as a non-nullable string as we use this field for IndexedDB indexing.
-   */
-  fulfillmentUrl: string;
-
-  contractTermsHash: string;
-  fulfillmentMessage?: string;
-  fulfillmentMessageI18n?: InternationalizedString;
-  merchantSig: string;
-  merchantPub: string;
-  merchant: MerchantInfo;
-  amount: AmountString;
-  orderId: string;
-  merchantBaseUrl: string;
-  summary: string;
-  summaryI18n: { [lang_tag: string]: string } | undefined;
-  autoRefund: TalerProtocolDuration | undefined;
-  maxWireFee: AmountString;
-  wireFeeAmortization: number;
-  payDeadline: TalerProtocolTimestamp;
-  refundDeadline: TalerProtocolTimestamp;
-  allowedExchanges: AllowedExchangeInfo[];
-  timestamp: TalerProtocolTimestamp;
-  wireMethod: string;
-  wireInfoHash: string;
-  maxDepositFee: AmountString;
-  minimumAge?: number;
-}
-
 export enum PurchaseStatus {
   /**
    * Not downloaded yet.
diff --git a/packages/taler-wallet-core/src/operations/balance.ts b/packages/taler-wallet-core/src/operations/balance.ts
index a20ded2af..8034f78ea 100644
--- a/packages/taler-wallet-core/src/operations/balance.ts
+++ b/packages/taler-wallet-core/src/operations/balance.ts
@@ -50,6 +50,8 @@
  * Imports.
  */
 import {
+  AllowedAuditorInfo,
+  AllowedExchangeInfo,
   AmountJson,
   Amounts,
   BalancesResponse,
@@ -60,17 +62,15 @@ import {
   ScopeType,
 } from "@gnu-taler/taler-util";
 import {
-  AllowedAuditorInfo,
-  AllowedExchangeInfo,
   RefreshGroupRecord,
   WalletStoresV1,
   WithdrawalGroupStatus,
 } from "../db.js";
 import { InternalWalletState } from "../internal-wallet-state.js";
+import { assertUnreachable } from "../util/assertUnreachable.js";
 import { checkLogicInvariant } from "../util/invariants.js";
 import { GetReadOnlyAccess } from "../util/query.js";
 import { getExchangeDetails } from "./exchanges.js";
-import { assertUnreachable } from "../util/assertUnreachable.js";
 
 /**
  * Logger.
diff --git a/packages/taler-wallet-core/src/operations/pay-merchant.ts b/packages/taler-wallet-core/src/operations/pay-merchant.ts
index 57367bb20..fe0cbeda0 100644
--- a/packages/taler-wallet-core/src/operations/pay-merchant.ts
+++ b/packages/taler-wallet-core/src/operations/pay-merchant.ts
@@ -63,7 +63,6 @@ import {
   RefreshReason,
   SharePaymentResult,
   StartRefundQueryForUriResponse,
-  stringifyPaytoUri,
   stringifyPayUri,
   stringifyTalerUri,
   TalerError,
@@ -78,6 +77,7 @@ import {
   TransactionState,
   TransactionType,
   URL,
+  WalletContractData,
 } from "@gnu-taler/taler-util";
 import {
   getHttpResponseErrorDetails,
@@ -95,7 +95,6 @@ import {
   PurchaseRecord,
   PurchaseStatus,
   RefundReason,
-  WalletContractData,
   WalletStoresV1,
 } from "../db.js";
 import {
@@ -115,15 +114,13 @@ import { checkDbInvariant } from "../util/invariants.js";
 import { GetReadOnlyAccess } from "../util/query.js";
 import {
   constructTaskIdentifier,
-  TaskRunResult,
-  TaskRunResultType,
   RetryInfo,
-  TaskIdentifiers,
-} from "./common.js";
-import {
   runLongpollAsync,
   runTaskWithErrorReporting,
   spendCoins,
+  TaskIdentifiers,
+  TaskRunResult,
+  TaskRunResultType,
 } from "./common.js";
 import {
   calculateRefreshOutput,
@@ -173,10 +170,7 @@ export async function getTotalPaymentCost(
         const allDenoms = await tx.denominations.indexes.byExchangeBaseUrl
           .iter(coin.exchangeBaseUrl)
           .filter((x) =>
-            Amounts.isSameCurrency(
-              x.value,
-              pcs.coinContributions[i],
-            ),
+            Amounts.isSameCurrency(x.value, pcs.coinContributions[i]),
           );
         const amountLeft = Amounts.sub(
           denom.value,
diff --git a/packages/taler-wallet-core/src/operations/transactions.ts b/packages/taler-wallet-core/src/operations/transactions.ts
index 7bdb9af5b..31655ad71 100644
--- a/packages/taler-wallet-core/src/operations/transactions.ts
+++ b/packages/taler-wallet-core/src/operations/transactions.ts
@@ -41,6 +41,7 @@ import {
   TransactionsResponse,
   TransactionState,
   TransactionType,
+  WalletContractData,
   WithdrawalType,
 } from "@gnu-taler/taler-util";
 import {
@@ -60,7 +61,6 @@ import {
   RefreshOperationStatus,
   RefundGroupRecord,
   RewardRecord,
-  WalletContractData,
   WithdrawalGroupRecord,
   WithdrawalGroupStatus,
   WithdrawalRecordType,
diff --git a/packages/taler-wallet-core/src/util/coinSelection.ts b/packages/taler-wallet-core/src/util/coinSelection.ts
index ef2f85789..6fd0f1b86 100644
--- a/packages/taler-wallet-core/src/util/coinSelection.ts
+++ b/packages/taler-wallet-core/src/util/coinSelection.ts
@@ -28,21 +28,20 @@ import {
   AbsoluteTime,
   AgeCommitmentProof,
   AgeRestriction,
+  AllowedAuditorInfo,
+  AllowedExchangeInfo,
   AmountJson,
   AmountLike,
-  AmountResponse,
   Amounts,
   AmountString,
   CoinPublicKeyString,
   CoinStatus,
-  ConvertAmountRequest,
   DenominationInfo,
   DenominationPubKey,
   DenomSelectionState,
   Duration,
   ForcedCoinSel,
   ForcedDenomSel,
-  GetAmountRequest,
   j2s,
   Logger,
   parsePaytoUri,
@@ -50,24 +49,13 @@ import {
   PayMerchantInsufficientBalanceDetails,
   PayPeerInsufficientBalanceDetails,
   strcmp,
-  TransactionAmountMode,
-  TransactionType,
   UnblindedSignature,
 } from "@gnu-taler/taler-util";
+import { DenominationRecord } from "../db.js";
 import {
-  AllowedAuditorInfo,
-  AllowedExchangeInfo,
-  DenominationRecord,
-} from "../db.js";
-import {
-  DbReadOnlyTransaction,
   getExchangeDetails,
-  GetReadOnlyAccess,
-  GetReadWriteAccess,
   isWithdrawableDenom,
-  StoreNames,
   WalletDbReadOnlyTransaction,
-  WalletStoresV1,
 } from "../index.js";
 import { InternalWalletState } from "../internal-wallet-state.js";
 import {
diff --git a/packages/taler-wallet-core/src/wallet-api-types.ts b/packages/taler-wallet-core/src/wallet-api-types.ts
index d89ad257a..67c05a42f 100644
--- a/packages/taler-wallet-core/src/wallet-api-types.ts
+++ b/packages/taler-wallet-core/src/wallet-api-types.ts
@@ -38,7 +38,6 @@ import {
   ApplyDevExperimentRequest,
   BackupRecovery,
   BalancesResponse,
-  FailTransactionRequest,
   CheckPeerPullCreditRequest,
   CheckPeerPullCreditResponse,
   CheckPeerPushDebitRequest,
@@ -51,14 +50,19 @@ import {
   ConvertAmountRequest,
   CreateDepositGroupRequest,
   CreateDepositGroupResponse,
+  CreateStoredBackupResponse,
+  DeleteStoredBackupRequest,
   DeleteTransactionRequest,
   ExchangeDetailedResponse,
   ExchangesListResponse,
+  FailTransactionRequest,
   ForceRefreshRequest,
   ForgetKnownBankAccountsRequest,
   GetAmountRequest,
   GetBalanceDetailRequest,
   GetContractTermsDetailsRequest,
+  GetCurrencyInfoRequest,
+  GetCurrencyInfoResponse,
   GetExchangeTosRequest,
   GetExchangeTosResult,
   GetPlanForOperationRequest,
@@ -85,16 +89,21 @@ import {
   PreparePeerPushCreditRequest,
   PreparePeerPushCreditResponse,
   PrepareRefundRequest,
-  PrepareRewardRequest as PrepareRewardRequest,
+  PrepareRewardRequest,
   PrepareTipResult as PrepareRewardResult,
+  RecoverStoredBackupRequest,
   RecoveryLoadRequest,
   RetryTransactionRequest,
   SetCoinSuspendedRequest,
   SetWalletDeviceIdRequest,
+  SharePaymentRequest,
+  SharePaymentResult,
   StartRefundQueryForUriResponse,
   StartRefundQueryRequest,
+  StoredBackupList,
   TestPayArgs,
   TestPayResult,
+  TestingSetTimetravelRequest,
   Transaction,
   TransactionByIdRequest,
   TransactionsRequest,
@@ -106,22 +115,13 @@ import {
   UserAttentionsResponse,
   ValidateIbanRequest,
   ValidateIbanResponse,
+  WalletContractData,
   WalletCoreVersion,
   WalletCurrencyInfo,
   WithdrawFakebankRequest,
   WithdrawTestBalanceRequest,
   WithdrawUriInfoResponse,
-  SharePaymentRequest,
-  SharePaymentResult,
-  GetCurrencyInfoRequest,
-  GetCurrencyInfoResponse,
-  StoredBackupList,
-  CreateStoredBackupResponse,
-  RecoverStoredBackupRequest,
-  DeleteStoredBackupRequest,
-  TestingSetTimetravelRequest,
 } from "@gnu-taler/taler-util";
-import { WalletContractData } from "./db.js";
 import {
   AddBackupProviderRequest,
   AddBackupProviderResponse,
diff --git a/packages/taler-wallet-webextension/src/components/ShowFullContractTermPopup.stories.tsx b/packages/taler-wallet-webextension/src/components/ShowFullContractTermPopup.stories.tsx
index 74c92cbc6..1b1802b8c 100644
--- a/packages/taler-wallet-webextension/src/components/ShowFullContractTermPopup.stories.tsx
+++ b/packages/taler-wallet-webextension/src/components/ShowFullContractTermPopup.stories.tsx
@@ -18,8 +18,6 @@
  *
  * @author Sebastian Javier Marchano (sebasjm)
  */
-
-import { WalletContractData } from "@gnu-taler/taler-wallet-core";
 import * as tests from "@gnu-taler/web-util/testing";
 import {
   ErrorView,
@@ -27,6 +25,7 @@ import {
   LoadingView,
   ShowView,
 } from "./ShowFullContractTermPopup.js";
+import { WalletContractData } from "@gnu-taler/taler-util";
 
 export default {
   title: "ShowFullContractTermPopup",
diff --git a/packages/taler-wallet-webextension/src/components/ShowFullContractTermPopup.tsx b/packages/taler-wallet-webextension/src/components/ShowFullContractTermPopup.tsx
index db9b6ebcd..0b3cca0b2 100644
--- a/packages/taler-wallet-webextension/src/components/ShowFullContractTermPopup.tsx
+++ b/packages/taler-wallet-webextension/src/components/ShowFullContractTermPopup.tsx
@@ -13,11 +13,13 @@
  You should have received a copy of the GNU General Public License along with
  GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
  */
-import { AbsoluteTime, Duration, Location } from "@gnu-taler/taler-util";
 import {
-  WalletApiOperation,
+  AbsoluteTime,
+  Duration,
+  Location,
   WalletContractData,
-} from "@gnu-taler/taler-wallet-core";
+} from "@gnu-taler/taler-util";
+import { WalletApiOperation } from "@gnu-taler/taler-wallet-core";
 import { styled } from "@linaria/react";
 import { Fragment, h, VNode } from "preact";
 import { useState } from "preact/hooks";
@@ -334,8 +336,8 @@ export function ShowView({ contractTerms, hideHandler }: States.Show): VNode {
                     !contractTerms.autoRefund
                       ? Duration.getZero()
                       : Duration.fromTalerProtocolDuration(
-                        contractTerms.autoRefund,
-                      ),
+                          contractTerms.autoRefund,
+                        ),
                   )}
                   format="dd MMMM yyyy, HH:mm"
                 />