diff --git a/package.json b/package.json
index 915af86..d423295 100644
--- a/package.json
+++ b/package.json
@@ -43,12 +43,10 @@
     "rimraf": "^4.4.0",
     "secret-stack": "^6.4.1",
     "secret-handshake-ext": "^0.0.7",
-    "ssb-box": "^1.0.1",
-    "tap-arc": "^0.3.5",
-    "tape": "^5.6.3"
+    "ssb-box": "^1.0.1"
   },
   "scripts": {
-    "test": "tape test/*.js | tap-arc --bail",
+    "test": "node --test",
     "format-code": "prettier --write \"(lib|test)/**/*.js\"",
     "format-code-staged": "pretty-quick --staged --pattern \"(lib|test)/**/*.js\"",
     "coverage": "c8 --reporter=lcov npm run test"
diff --git a/test/feed-sync.test.js b/test/feed-sync.test.js
index b5a9ba5..d53f342 100644
--- a/test/feed-sync.test.js
+++ b/test/feed-sync.test.js
@@ -1,4 +1,5 @@
-const test = require('tape')
+const test = require('node:test')
+const assert = require('node:assert')
 const p = require('node:util').promisify
 const Keypair = require('ppppp-keypair')
 const Algorithm = require('../lib/algorithm')
@@ -33,7 +34,7 @@ test('sync a feed with goal=all', async (t) => {
     })
     carolMsgs.push(rec.msg)
   }
-  t.pass('alice has msgs 1..10 from carol')
+  assert('alice has msgs 1..10 from carol')
 
   const carolPostsRootHash = alice.db.feed.getId(carolID, 'post')
   const carolPostsRootMsg = alice.db.get(carolPostsRootHash)
@@ -47,7 +48,7 @@ test('sync a feed with goal=all', async (t) => {
     const arr = [...bob.db.msgs()]
       .filter((msg) => msg.metadata.identity === carolID && msg.data)
       .map((msg) => msg.data.text)
-    t.deepEquals(
+    assert.deepEqual(
       arr,
       ['m1', 'm2', 'm3', 'm4', 'm5', 'm6', 'm7'],
       'bob has msgs 1..7 from carol'
@@ -58,17 +59,17 @@ test('sync a feed with goal=all', async (t) => {
   alice.tangleSync.setGoal(carolPostsRootHash, 'all')
 
   const remoteAlice = await p(bob.connect)(alice.getAddress())
-  t.pass('bob connected to alice')
+  assert('bob connected to alice')
 
   bob.tangleSync.initiate()
   await p(setTimeout)(1000)
-  t.pass('tangleSync!')
+  assert('tangleSync!')
 
   {
     const arr = [...bob.db.msgs()]
       .filter((msg) => msg.metadata.identity === carolID && msg.data)
       .map((msg) => msg.data.text)
-    t.deepEquals(
+    assert.deepEqual(
       arr,
       ['m1', 'm2', 'm3', 'm4', 'm5', 'm6', 'm7', 'm8', 'm9', 'm10'],
       'bob has msgs 1..10 from carol'
@@ -107,7 +108,7 @@ test('sync a feed with goal=newest', async (t) => {
     })
     carolMsgs.push(rec.msg)
   }
-  t.pass('alice has msgs 1..10 from carol')
+  assert('alice has msgs 1..10 from carol')
 
   const carolPostsRootHash = alice.db.feed.getId(carolID, 'post')
   const carolPostsRootMsg = alice.db.get(carolPostsRootHash)
@@ -121,7 +122,7 @@ test('sync a feed with goal=newest', async (t) => {
     const arr = [...bob.db.msgs()]
       .filter((msg) => msg.metadata.identity === carolID && msg.data)
       .map((msg) => msg.data.text)
-    t.deepEquals(
+    assert.deepEqual(
       arr,
       ['m1', 'm2', 'm3', 'm4', 'm5', 'm6', 'm7'],
       'bob has msgs 1..7 from carol'
@@ -132,17 +133,17 @@ test('sync a feed with goal=newest', async (t) => {
   alice.tangleSync.setGoal(carolPostsRootHash, 'all')
 
   const remoteAlice = await p(bob.connect)(alice.getAddress())
-  t.pass('bob connected to alice')
+  assert('bob connected to alice')
 
   bob.tangleSync.initiate()
   await p(setTimeout)(1000)
-  t.pass('tangleSync!')
+  assert('tangleSync!')
 
   {
     const arr = [...bob.db.msgs()]
       .filter((msg) => msg.metadata.identity === carolID && msg.data)
       .map((msg) => msg.data.text)
-    t.deepEquals(
+    assert.deepEqual(
       arr,
       ['m6', 'm7', 'm8', 'm9', 'm10'],
       'bob has msgs 6..10 from carol'
@@ -191,7 +192,7 @@ test('sync a feed with goal=newest but too far behind', async (t) => {
     const arr = [...alice.db.msgs()]
       .filter((msg) => msg.metadata.identity === carolID && msg.data)
       .map((msg) => msg.data.text)
-    t.deepEquals(
+    assert.deepEqual(
       arr,
       ['m6', 'm7', 'm8', 'm9', 'm10'],
       'alice has msgs 6..10 from carol'
@@ -207,24 +208,24 @@ test('sync a feed with goal=newest but too far behind', async (t) => {
     const arr = [...bob.db.msgs()]
       .filter((msg) => msg.metadata.identity === carolID && msg.data)
       .map((msg) => msg.data.text)
-    t.deepEquals(arr, ['m1', 'm2'], 'bob has msgs 1..2 from carol')
+    assert.deepEqual(arr, ['m1', 'm2'], 'bob has msgs 1..2 from carol')
   }
 
   alice.tangleSync.setGoal(carolPostsRootHash, 'newest-5')
   bob.tangleSync.setGoal(carolPostsRootHash, 'newest-5')
 
   const remoteAlice = await p(bob.connect)(alice.getAddress())
-  t.pass('bob connected to alice')
+  assert('bob connected to alice')
 
   bob.tangleSync.initiate()
   await p(setTimeout)(1000)
-  t.pass('tangleSync!')
+  assert('tangleSync!')
 
   {
     const arr = [...bob.db.msgs()]
       .filter((msg) => msg.metadata.identity === carolID && msg.data)
       .map((msg) => msg.data.text)
-    t.deepEquals(
+    assert.deepEqual(
       arr,
       ['m6', 'm7', 'm8', 'm9', 'm10'],
       'bob has msgs 6..10 from carol'
diff --git a/test/identity-sync.test.js b/test/identity-sync.test.js
index 30f2235..7b6421f 100644
--- a/test/identity-sync.test.js
+++ b/test/identity-sync.test.js
@@ -1,4 +1,5 @@
-const test = require('tape')
+const test = require('node:test')
+const assert = require('node:assert')
 const p = require('util').promisify
 const Keypair = require('ppppp-keypair')
 const { createPeer } = require('./util')
@@ -38,13 +39,13 @@ test('sync an identity tangle', async (t) => {
     keypair: aliceKeypair2,
   })
 
-  t.deepEquals(
+  assert.deepEqual(
     getIdentity(alice.db.msgs()),
     [aliceKeypair.public, aliceKeypair1.public, aliceKeypair2.public],
     'alice has her identity tangle'
   )
 
-  t.deepEquals(
+  assert.deepEqual(
     getIdentity(bob.db.msgs()),
     [],
     "bob doesn't have alice's identity tangle"
@@ -54,13 +55,13 @@ test('sync an identity tangle', async (t) => {
   alice.tangleSync.setGoal(aliceID, 'all')
 
   const remoteAlice = await p(bob.connect)(alice.getAddress())
-  t.pass('bob connected to alice')
+  assert('bob connected to alice')
 
   bob.tangleSync.initiate()
   await p(setTimeout)(1000)
-  t.pass('tangleSync!')
+  assert('tangleSync!')
 
-  t.deepEquals(
+  assert.deepEqual(
     getIdentity(bob.db.msgs()),
     [aliceKeypair.public, aliceKeypair1.public, aliceKeypair2.public],
     "bob has alice's identity tangle"
diff --git a/test/thread-sync.test.js b/test/thread-sync.test.js
index 70b7967..014939a 100644
--- a/test/thread-sync.test.js
+++ b/test/thread-sync.test.js
@@ -1,4 +1,5 @@
-const test = require('tape')
+const test = require('node:test')
+const assert = require('node:assert')
 const p = require('util').promisify
 const Keypair = require('ppppp-keypair')
 const { createPeer } = require('./util')
@@ -136,13 +137,13 @@ test('sync a thread where both peers have portions', async (t) => {
     keypair: daveKeypair,
   })
 
-  t.deepEquals(
+  assert.deepEqual(
     getTexts(alice.db.msgs()),
     ['A', 'B1', 'B2', 'C1'],
     'alice has a portion of the thread'
   )
 
-  t.deepEquals(
+  assert.deepEqual(
     getTexts(bob.db.msgs()),
     ['A', 'B1', 'B2', 'D1'],
     'bob has another portion of the thread'
@@ -152,19 +153,19 @@ test('sync a thread where both peers have portions', async (t) => {
   alice.tangleSync.setGoal(startA.hash, 'all')
 
   const remoteAlice = await p(bob.connect)(alice.getAddress())
-  t.pass('bob connected to alice')
+  assert('bob connected to alice')
 
   bob.tangleSync.initiate()
   await p(setTimeout)(1000)
-  t.pass('tangleSync!')
+  assert('tangleSync!')
 
-  t.deepEquals(
+  assert.deepEqual(
     getTexts(alice.db.msgs()),
     ['A', 'B1', 'B2', 'C1', 'D1'],
     'alice has the full thread'
   )
 
-  t.deepEquals(
+  assert.deepEqual(
     getTexts(bob.db.msgs()),
     ['A', 'B1', 'B2', 'D1', 'C1'],
     'bob has the full thread'
@@ -219,26 +220,26 @@ test('sync a thread where initiator does not have the root', async (t) => {
     tangles: [rootA.hash],
   })
 
-  t.deepEquals(
+  assert.deepEqual(
     getTexts(alice.db.msgs()),
     ['A', 'A1', 'A2'],
     'alice has the full thread'
   )
 
-  t.deepEquals(getTexts(bob.db.msgs()), [], 'bob has nothing')
+  assert.deepEqual(getTexts(bob.db.msgs()), [], 'bob has nothing')
 
   bob.tangleSync.setGoal(rootA.hash, 'all')
   // ON PURPOSE: alice does not set the goal
   // alice.tangleSync.setGoal(rootA.hash, 'all')
 
   const remoteAlice = await p(bob.connect)(alice.getAddress())
-  t.pass('bob connected to alice')
+  assert('bob connected to alice')
 
   bob.tangleSync.initiate()
   await p(setTimeout)(1000)
-  t.pass('tangleSync!')
+  assert('tangleSync!')
 
-  t.deepEquals(
+  assert.deepEqual(
     getTexts(bob.db.msgs()),
     ['A', 'A1', 'A2'],
     'bob has the full thread'
@@ -293,25 +294,25 @@ test('sync a thread where receiver does not have the root', async (t) => {
     tangles: [rootA.hash],
   })
 
-  t.deepEquals(
+  assert.deepEqual(
     getTexts(alice.db.msgs()),
     ['A', 'A1', 'A2'],
     'alice has the full thread'
   )
 
-  t.deepEquals(getTexts(bob.db.msgs()), [], 'bob has nothing')
+  assert.deepEqual(getTexts(bob.db.msgs()), [], 'bob has nothing')
 
   bob.tangleSync.setGoal(rootA.hash, 'all')
   alice.tangleSync.setGoal(rootA.hash, 'all')
 
   const remoteBob = await p(alice.connect)(bob.getAddress())
-  t.pass('alice connected to bob')
+  assert('alice connected to bob')
 
   alice.tangleSync.initiate()
   await p(setTimeout)(1000)
-  t.pass('tangleSync!')
+  assert('tangleSync!')
 
-  t.deepEquals(
+  assert.deepEqual(
     getTexts(bob.db.msgs()),
     ['A', 'A1', 'A2'],
     'bob has the full thread'
@@ -373,25 +374,25 @@ test('sync a thread with reactions too', async (t) => {
     tangles: [rootA.hash, replyA1.hash],
   })
 
-  t.deepEquals(
+  assert.deepEqual(
     getTexts(alice.db.msgs()),
     ['A', 'A1', 'A2', 'yes'],
     'alice has the full thread'
   )
 
-  t.deepEquals(getTexts(bob.db.msgs()), [], 'bob has nothing')
+  assert.deepEqual(getTexts(bob.db.msgs()), [], 'bob has nothing')
 
   bob.tangleSync.setGoal(rootA.hash, 'all')
   alice.tangleSync.setGoal(rootA.hash, 'all')
 
   const remoteBob = await p(alice.connect)(bob.getAddress())
-  t.pass('alice connected to bob')
+  assert('alice connected to bob')
 
   alice.tangleSync.initiate()
   await p(setTimeout)(1000)
-  t.pass('tangleSync!')
+  assert('tangleSync!')
 
-  t.deepEquals(
+  assert.deepEqual(
     getTexts(bob.db.msgs()),
     ['A', 'A1', 'A2', 'yes'],
     'bob has the full thread'