diff --git a/test/candles.spec.ts b/test/candles.spec.ts
index 53d7a8d..2630652 100644
--- a/test/candles.spec.ts
+++ b/test/candles.spec.ts
@@ -614,7 +614,7 @@ test('makeFastStartEnd', () => {
   };
   const ev2 = makeFastStartEnd(ev, options);
   const startEvent = ev2.startEvent as TimedEvent;
-  expect(startEvent).not.toBe(null);
+  expect(startEvent).not.toBeNull();
   expect(startEvent.eventTime.toISOString()).toBe('2023-07-27T00:10:00.000Z');
   expect(startEvent.eventTimeStr).toBe('20:10');
 });
diff --git a/test/event.spec.ts b/test/event.spec.ts
index 86a2411..1b62199 100644
--- a/test/event.spec.ts
+++ b/test/event.spec.ts
@@ -25,7 +25,7 @@ test('renderBrief', () => {
 });
 
 test('emoji', () => {
-  expect(ev.getEmoji()).toBe(null);
+  expect(ev.getEmoji()).toBeNull();
 });
 
 test('basename', () => {
diff --git a/test/sedra.spec.ts b/test/sedra.spec.ts
index 0403b4e..dc41d8e 100644
--- a/test/sedra.spec.ts
+++ b/test/sedra.spec.ts
@@ -125,11 +125,11 @@ test('find', () => {
   expect(dt(sedra.find('Bo'))).toBe('2021-01-23');
   expect(dt(sedra.find(['Tazria', 'Metzora']))).toBe('2021-04-17');
   expect(dt(sedra.find('Tazria-Metzora'))).toBe('2021-04-17');
-  expect(sedra.find('Tazria')).toBe(null);
-  expect(sedra.find('Metzora')).toBe(null);
+  expect(sedra.find('Tazria')).toBeNull();
+  expect(sedra.find('Metzora')).toBeNull();
   expect(dt(sedra.find('Chukat'))).toBe('2021-06-19');
-  expect(sedra.find(['Chukat', 'Balak'])).toBe(null);
-  expect(sedra.find('Chukat-Balak')).toBe(null);
+  expect(sedra.find(['Chukat', 'Balak'])).toBeNull();
+  expect(sedra.find('Chukat-Balak')).toBeNull();
   const sedra5785 = new Sedra(5785, false);
   expect(dt(sedra5785.find('Sukkot Shabbat Chol ha-Moed'))).toBe('2024-10-19');
   expect(sedra.find('Sukkot Shabbat Chol ha-Moed')).toBeNull();
@@ -158,7 +158,7 @@ test('find-number', () => {
 
 test('find-bad string returns null', () => {
   const sedra = new Sedra(5781, false);
-  expect(sedra.find('Bogus')).toBe(null);
+  expect(sedra.find('Bogus')).toBeNull();
 });
 
 test('find-throws', () => {
@@ -191,7 +191,7 @@ test('find-throws', () => {
 
 test('find-holiday', () => {
   const sedra1 = new Sedra(5781, false);
-  expect(sedra1.find('Yom Kippur')).toBe(null);
+  expect(sedra1.find('Yom Kippur')).toBeNull();
   expect(dt(sedra1.find('Pesach VII'))).toBe('2021-04-03');
 
   const sedra2 = new Sedra(5754, true);
@@ -199,7 +199,7 @@ test('find-holiday', () => {
   expect(dt(sedra2.find('Pesach VII'))).toBe('1994-04-02');
 
   const sedra3 = new Sedra(5752, false);
-  expect(sedra3.find('Pesach VII')).toBe(null);
+  expect(sedra3.find('Pesach VII')).toBeNull();
   expect(dt(sedra3.find('Pesach VIII'))).toBe('1992-04-25');
 });