10 files changed, 18 insertions, 20 deletions
diff --git a/packages/taler-util/package.json b/packages/taler-util/package.json
index 89ab47979..a1c769e8f 100644
--- a/packages/taler-util/package.json
+++ b/packages/taler-util/package.json
@@ -7,6 +7,7 @@
   },
   "module": "./lib/index.js",
   "main": "./lib/index.js",
+  "type": "module",
   "types": "./lib/index.d.ts",
   "typesVersions": {
     "*": {
diff --git a/packages/taler-util/src/ReserveStatus.ts b/packages/taler-util/src/ReserveStatus.ts
index cd204f55e..b17207f24 100644
--- a/packages/taler-util/src/ReserveStatus.ts
+++ b/packages/taler-util/src/ReserveStatus.ts
@@ -27,11 +27,11 @@ import {
   codecForList,
   Codec,
 } from "./codec.js";
-import { AmountString } from "./talerTypes";
+import { AmountString } from "./talerTypes.js";
 import {
   ReserveTransaction,
   codecForReserveTransaction,
-} from "./ReserveTransaction";
+} from "./ReserveTransaction.js";
 
 /**
  * Status of a reserve.
diff --git a/packages/taler-util/src/amounts.ts b/packages/taler-util/src/amounts.ts
index e27bb79a8..e472de503 100644
--- a/packages/taler-util/src/amounts.ts
+++ b/packages/taler-util/src/amounts.ts
@@ -26,8 +26,8 @@ import {
   codecForString,
   codecForNumber,
   Codec,
-} from "./codec";
-import { AmountString } from "./talerTypes";
+} from "./codec.js";
+import { AmountString } from "./talerTypes.js";
 
 /**
  * Number of fractional units that one value unit represents.
diff --git a/packages/taler-util/src/helpers.ts b/packages/taler-util/src/helpers.ts
index e269bd46b..fb0cd8a2b 100644
--- a/packages/taler-util/src/helpers.ts
+++ b/packages/taler-util/src/helpers.ts
@@ -21,9 +21,9 @@
 /**
  * Imports.
  */
-import { AmountJson } from "./amounts";
-import * as Amounts from "./amounts";
-import { URL } from "./url";
+import { AmountJson } from "./amounts.js";
+import * as Amounts from "./amounts.js";
+import { URL } from "./url.js";
 
 /**
  * Show an amount in a form suitable for the user.
diff --git a/packages/taler-util/src/talerTypes.ts b/packages/taler-util/src/talerTypes.ts
index bc04fc2f6..db20234cf 100644
--- a/packages/taler-util/src/talerTypes.ts
+++ b/packages/taler-util/src/talerTypes.ts
@@ -17,8 +17,6 @@
 /**
  * Type and schema definitions and helpers for the core GNU Taler protocol.
  *
- * All types here should be "@Checkable".
- *
  * Even though the rest of the wallet uses camelCase for fields, use snake_case
  * here, since that's the convention for the Taler JSON+HTTP API.
  */
@@ -40,14 +38,14 @@ import {
   codecForConstNumber,
   buildCodecForUnion,
   codecForConstString,
-} from "./codec";
+} from "./codec.js";
 import {
   Timestamp,
   codecForTimestamp,
   Duration,
   codecForDuration,
-} from "./time";
-import { codecForAmountString } from "./amounts";
+} from "./time.js";
+import { codecForAmountString } from "./amounts.js";
 
 /**
  * Denomination as found in the /keys response from the exchange.
diff --git a/packages/taler-util/src/talerconfig.ts b/packages/taler-util/src/talerconfig.ts
index 2a388f8d3..e060afb71 100644
--- a/packages/taler-util/src/talerconfig.ts
+++ b/packages/taler-util/src/talerconfig.ts
@@ -23,8 +23,8 @@
 /**
  * Imports
  */
-import { AmountJson } from "./amounts";
-import { Amounts } from "./amounts";
+import { AmountJson } from "./amounts.js";
+import { Amounts } from "./amounts.js";
 import fs from "fs";
 
 export class ConfigError extends Error {
diff --git a/packages/taler-util/src/taleruri.ts b/packages/taler-util/src/taleruri.ts
index d8366fd0f..6c0dc7b86 100644
--- a/packages/taler-util/src/taleruri.ts
+++ b/packages/taler-util/src/taleruri.ts
@@ -14,8 +14,8 @@
  GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
  */
 
-import { canonicalizeBaseUrl } from "./helpers";
-import { URLSearchParams } from "./url";
+import { canonicalizeBaseUrl } from "./helpers.js";
+import { URLSearchParams } from "./url.js";
 
 export interface PayUriResult {
   merchantBaseUrl: string;
diff --git a/packages/taler-util/src/time.ts b/packages/taler-util/src/time.ts
index 1a23037a0..980f42db4 100644
--- a/packages/taler-util/src/time.ts
+++ b/packages/taler-util/src/time.ts
@@ -21,7 +21,7 @@
 /**
  * Imports.
  */
-import { Codec, renderContext, Context } from "./codec";
+import { Codec, renderContext, Context } from "./codec.js";
 
 export class Timestamp {
   /**
diff --git a/packages/taler-util/src/types-test.ts b/packages/taler-util/src/types-test.ts
index 19c9b5aa6..6998bb5fb 100644
--- a/packages/taler-util/src/types-test.ts
+++ b/packages/taler-util/src/types-test.ts
@@ -15,7 +15,7 @@
  */
 
 import test from "ava";
-import { codecForContractTerms } from "./talerTypes";
+import { codecForContractTerms } from "./talerTypes.js";
 
 test("contract terms validation", (t) => {
   const c = {
diff --git a/packages/taler-util/src/walletTypes.ts b/packages/taler-util/src/walletTypes.ts
index d25108df7..d1453658b 100644
--- a/packages/taler-util/src/walletTypes.ts
+++ b/packages/taler-util/src/walletTypes.ts
@@ -32,7 +32,6 @@ import {
   codecForAmountJson,
   codecForAmountString,
 } from "./amounts.js";
-import * as LibtoolVersion from "./libtool-version.js";
 import { Timestamp, codecForTimestamp } from "./time.js";
 import {
   buildCodecForObject,
@@ -50,7 +49,7 @@ import {
   codecForContractTerms,
   ContractTerms,
 } from "./talerTypes.js";
-import { OrderShortInfo, codecForOrderShortInfo } from "./transactionsTypes";
+import { OrderShortInfo, codecForOrderShortInfo } from "./transactionsTypes.js";
 import { BackupRecovery } from "./backupTypes.js";
 
 /**