diff --git a/src/components/Line.ts b/src/components/Line.ts
index 2c63f7ea..01a77675 100644
--- a/src/components/Line.ts
+++ b/src/components/Line.ts
@@ -1,6 +1,6 @@
-import type { RenderedLineInfo } from '../view-model/scroll-view-model'
-import displayRange from '../display-range'
-import textFilter from '../text-filter'
+import type { RenderedLineInfo } from '../view-model/scroll-view-model.ts'
+import displayRange from '../display-range.ts'
+import textFilter from '../text-filter.ts'
 
 const ktivKriAnnotation = (text: string) =>
   text
diff --git a/src/components/ParshaPicker.ts b/src/components/ParshaPicker.ts
index 61a8730e..6d3bf19c 100644
--- a/src/components/ParshaPicker.ts
+++ b/src/components/ParshaPicker.ts
@@ -1,8 +1,8 @@
-import fuzzy from '../fuzzy'
+import fuzzy from '../fuzzy.ts'
 import utils from './utils.ts'
 import ParshaResult, { NoResults } from './ParshaResult.ts'
 import Search, { SearchEmitter } from './Search.ts'
-import EventEmitter from '../event-emitter'
+import EventEmitter from '../event-emitter.ts'
 import { LeiningGenerator } from '../calendar-model/generator.ts'
 import { HDate, Locale } from '@hebcal/core'
 import {
diff --git a/src/components/ScrollDisplay.ts b/src/components/ScrollDisplay.ts
index 751e3306..2d30d975 100644
--- a/src/components/ScrollDisplay.ts
+++ b/src/components/ScrollDisplay.ts
@@ -4,8 +4,8 @@ import {
   RenderedPageInfo,
   ScrollViewModel,
 } from '../view-model/scroll-view-model'
-import Page from './Page'
-import utils from './utils'
+import Page from './Page.ts'
+import utils from './utils.ts'
 
 const { htmlToElement, purgeNode } = utils
 
diff --git a/src/components/Search.ts b/src/components/Search.ts
index 49898395..686a0e63 100644
--- a/src/components/Search.ts
+++ b/src/components/Search.ts
@@ -1,6 +1,6 @@
 import utils from './utils.ts'
 import SelectList, { setSelected, getSelected } from './SelectList.ts'
-import { EventEmitter } from '../event-emitter'
+import { EventEmitter } from '../event-emitter.ts'
 
 const { htmlToElement: html, whenKey, purgeNode } = utils
 
diff --git a/src/fuzzy.test.js b/src/fuzzy.test.js
index 8d160219..ccd9e6f8 100644
--- a/src/fuzzy.test.js
+++ b/src/fuzzy.test.js
@@ -1,5 +1,5 @@
 import test from 'ava'
-import fuzzy from './fuzzy'
+import fuzzy from './fuzzy.ts'
 
 test('only matches if all characters are present in order', (t) => {
   const haystack = [
diff --git a/src/hebrew-numeral.test.js b/src/hebrew-numeral.test.js
index 9b3d48b0..a79d5d6b 100644
--- a/src/hebrew-numeral.test.js
+++ b/src/hebrew-numeral.test.js
@@ -1,5 +1,5 @@
 import test from 'ava'
-import hebrewNumeralFromInteger from './hebrew-numeral'
+import hebrewNumeralFromInteger from './hebrew-numeral.ts'
 
 test('exact value returns the letter', (t) => {
   t.is(hebrewNumeralFromInteger(4), 'ד')
diff --git a/src/integer-iterator.test.js b/src/integer-iterator.test.js
index 824e95e3..0f318043 100644
--- a/src/integer-iterator.test.js
+++ b/src/integer-iterator.test.js
@@ -1,6 +1,6 @@
 import test from 'ava'
 
-import IntegerIterator from './integer-iterator'
+import IntegerIterator from './integer-iterator.ts'
 
 test('previous once returns 1 less than the start', (t) => {
   const sut = IntegerIterator.new({ startingAt: 0 })
diff --git a/src/location.test.js b/src/location.test.js
index 7f87a07d..f2f32f27 100644
--- a/src/location.test.js
+++ b/src/location.test.js
@@ -1,5 +1,5 @@
 import test from 'ava'
-import { loadScroll } from './location'
+import { loadScroll } from './location.ts'
 
 test('page count for torah', async (t) => {
   const resolver = await loadScroll('torah')
diff --git a/src/slugify.test.js b/src/slugify.test.js
index 6009086e..95ba0842 100644
--- a/src/slugify.test.js
+++ b/src/slugify.test.js
@@ -1,5 +1,5 @@
 import test from 'ava'
-import slugify from './slugify'
+import slugify from './slugify.ts'
 
 test('slugify lowercases all letters', (t) => {
   t.assert(slugify('HelLo') === 'hello')
diff --git a/src/text-filter.test.js b/src/text-filter.test.js
index c0efb998..9a3d2b17 100644
--- a/src/text-filter.test.js
+++ b/src/text-filter.test.js
@@ -1,5 +1,5 @@
 import test from 'ava'
-import textFilter from './text-filter'
+import textFilter from './text-filter.ts'
 
 test('simple annotated text remains untouched', (t) => {
   t.is(
diff --git a/src/verses-range.test.js b/src/verses-range.test.js
index 03656ed3..f1c1436f 100644
--- a/src/verses-range.test.js
+++ b/src/verses-range.test.js
@@ -1,5 +1,5 @@
 import test from 'ava'
-import hebrewNumeral from './hebrew-numeral'
+import hebrewNumeral from './hebrew-numeral.ts'
 
 const versesRange = (verses) => {
   if (verses.length === 1) return hebrewNumeral(verses[0].verse)