13 files changed, 27 insertions, 31 deletions
diff --git a/lib/internal/applyEach.js b/lib/internal/applyEach.js
index c08a5eb..3a9ea3a 100644
--- a/lib/internal/applyEach.js
+++ b/lib/internal/applyEach.js
@@ -1,5 +1,5 @@
-import wrapAsync from './wrapAsync';
-import awaitify from './awaitify'
+import wrapAsync from './wrapAsync.js'
+import awaitify from './awaitify.js'
 
 export default function (eachfn) {
     return function applyEach(fns, ...callArgs) {
diff --git a/lib/internal/asyncEachOfLimit.js b/lib/internal/asyncEachOfLimit.js
index 69d5e74..46b08c6 100644
--- a/lib/internal/asyncEachOfLimit.js
+++ b/lib/internal/asyncEachOfLimit.js
@@ -1,4 +1,4 @@
-import breakLoop from './breakLoop';
+import breakLoop from './breakLoop.js'
 
 // for async generators
 export default function asyncEachOfLimit(generator, limit, iteratee, callback) {
diff --git a/lib/internal/consoleFunc.js b/lib/internal/consoleFunc.js
index 4ce5c9b..3c2a39f 100644
--- a/lib/internal/consoleFunc.js
+++ b/lib/internal/consoleFunc.js
@@ -1,4 +1,4 @@
-import wrapAsync from './wrapAsync';
+import wrapAsync from './wrapAsync.js'
 
 export default function consoleFunc(name) {
     return (fn, ...args) => wrapAsync(fn)(...args, (err, ...resultArgs) => {
diff --git a/lib/internal/createTester.js b/lib/internal/createTester.js
index 2c2745e..ce7828a 100644
--- a/lib/internal/createTester.js
+++ b/lib/internal/createTester.js
@@ -1,5 +1,5 @@
-import breakLoop from './breakLoop';
-import wrapAsync from './wrapAsync'
+import breakLoop from './breakLoop.js'
+import wrapAsync from './wrapAsync.js'
 
 export default function _createTester(check, getResult) {
     return (eachfn, arr, _iteratee, cb) => {
diff --git a/lib/internal/eachOfLimit.js b/lib/internal/eachOfLimit.js
index ec6c8be..063f8e5 100644
--- a/lib/internal/eachOfLimit.js
+++ b/lib/internal/eachOfLimit.js
@@ -1,11 +1,9 @@
-import once from './once';
-
-import iterator from './iterator';
-import onlyOnce from './onlyOnce';
-import {isAsyncGenerator, isAsyncIterable} from './wrapAsync'
-import asyncEachOfLimit from './asyncEachOfLimit'
-
-import breakLoop from './breakLoop';
+import once from './once.js'
+import iterator from './iterator.js'
+import onlyOnce from './onlyOnce.js'
+import {isAsyncGenerator, isAsyncIterable} from './wrapAsync.js'
+import asyncEachOfLimit from './asyncEachOfLimit.js'
+import breakLoop from './breakLoop.js'
 
 export default (limit) => {
     return (obj, iteratee, callback) => {
diff --git a/lib/internal/filter.js b/lib/internal/filter.js
index 936dac6..a047805 100644
--- a/lib/internal/filter.js
+++ b/lib/internal/filter.js
@@ -1,6 +1,5 @@
-import isArrayLike from './isArrayLike';
-
-import wrapAsync from './wrapAsync';
+import isArrayLike from './isArrayLike.js'
+import wrapAsync from './wrapAsync.js'
 
 function filterArray(eachfn, arr, iteratee, callback) {
     var truthValues = new Array(arr.length);
diff --git a/lib/internal/iterator.js b/lib/internal/iterator.js
index 02526e0..2fe85c3 100644
--- a/lib/internal/iterator.js
+++ b/lib/internal/iterator.js
@@ -1,5 +1,5 @@
-import isArrayLike from './isArrayLike';
-import getIterator from './getIterator';
+import isArrayLike from './isArrayLike.js'
+import getIterator from './getIterator.js'
 
 function createArrayIterator(coll) {
     var i = -1;
diff --git a/lib/internal/map.js b/lib/internal/map.js
index 092f76d..ca99579 100644
--- a/lib/internal/map.js
+++ b/lib/internal/map.js
@@ -1,4 +1,4 @@
-import wrapAsync from './wrapAsync';
+import wrapAsync from './wrapAsync.js'
 
 export default function _asyncMap(eachfn, arr, iteratee, callback) {
     arr = arr || [];
diff --git a/lib/internal/parallel.js b/lib/internal/parallel.js
index 790b6e8..f4f91ea 100644
--- a/lib/internal/parallel.js
+++ b/lib/internal/parallel.js
@@ -1,6 +1,6 @@
-import isArrayLike from './isArrayLike';
-import wrapAsync from './wrapAsync';
-import awaitify from './awaitify'
+import isArrayLike from './isArrayLike.js'
+import wrapAsync from './wrapAsync.js'
+import awaitify from './awaitify.js'
 
 export default awaitify((eachfn, tasks, callback) => {
     var results = isArrayLike(tasks) ? [] : {};
diff --git a/lib/internal/queue.js b/lib/internal/queue.js
index bb3e16b..886fe7a 100644
--- a/lib/internal/queue.js
+++ b/lib/internal/queue.js
@@ -1,7 +1,7 @@
-import onlyOnce from './onlyOnce';
-import setImmediate from './setImmediate';
-import DLL from './DoublyLinkedList';
-import wrapAsync from './wrapAsync';
+import onlyOnce from './onlyOnce.js'
+import setImmediate from './setImmediate.js'
+import DLL from './DoublyLinkedList.js'
+import wrapAsync from './wrapAsync.js'
 
 export default function queue(worker, concurrency, payload) {
     if (concurrency == null) {
diff --git a/lib/internal/reject.js b/lib/internal/reject.js
index d0549cc..59b0786 100644
--- a/lib/internal/reject.js
+++ b/lib/internal/reject.js
@@ -1,5 +1,5 @@
-import filter from './filter';
-import wrapAsync from './wrapAsync'
+import filter from './filter.js'
+import wrapAsync from './wrapAsync.js'
 
 export default function reject(eachfn, arr, _iteratee, callback) {
     const iteratee = wrapAsync(_iteratee)
diff --git a/lib/internal/setImmediate.js b/lib/internal/setImmediate.js
index 4ef39a0..bafd40c 100644
--- a/lib/internal/setImmediate.js
+++ b/lib/internal/setImmediate.js
@@ -1,4 +1,3 @@
-'use strict';
 /* istanbul ignore file */
 
 export var hasQueueMicrotask = typeof queueMicrotask === 'function' && queueMicrotask;
diff --git a/lib/internal/wrapAsync.js b/lib/internal/wrapAsync.js
index 270cf8f..4e21f82 100644
--- a/lib/internal/wrapAsync.js
+++ b/lib/internal/wrapAsync.js
@@ -1,4 +1,4 @@
-import asyncify from '../asyncify';
+import asyncify from '../asyncify.js'
 
 function isAsync(fn) {
     return fn[Symbol.toStringTag] === 'AsyncFunction';