diff --git a/test/address.js b/test/address.js
index 99955e7..a0f4df0 100644
--- a/test/address.js
+++ b/test/address.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const baddress = require('../src/address')
 const bscript = require('../src/script')
diff --git a/test/bitcoin.core.js b/test/bitcoin.core.js
index f0aecf7..560bf20 100644
--- a/test/bitcoin.core.js
+++ b/test/bitcoin.core.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const base58 = require('bs58')
 const bitcoin = require('../')
diff --git a/test/block.js b/test/block.js
index 1da9de3..d9ff405 100644
--- a/test/block.js
+++ b/test/block.js
@@ -1,5 +1,4 @@
-/* global describe, it, beforeEach */
-
+const { describe, it, beforeEach } = require('mocha')
 const assert = require('assert')
 const Block = require('../src/block')
 
diff --git a/test/bufferutils.js b/test/bufferutils.js
index aa044af..5f2c39e 100644
--- a/test/bufferutils.js
+++ b/test/bufferutils.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const bufferutils = require('../src/bufferutils')
 
diff --git a/test/classify.js b/test/classify.js
index f56647e..3efcc74 100644
--- a/test/classify.js
+++ b/test/classify.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const bscript = require('../src/script')
 const classify = require('../src/classify')
diff --git a/test/crypto.js b/test/crypto.js
index 18f2a37..3f7802a 100644
--- a/test/crypto.js
+++ b/test/crypto.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const bcrypto = require('../src/crypto')
 
diff --git a/test/ecpair.js b/test/ecpair.js
index fc215f1..3b5857f 100644
--- a/test/ecpair.js
+++ b/test/ecpair.js
@@ -1,6 +1,6 @@
-/* global describe, it, beforeEach */
 /* eslint-disable no-new */
 
+const { describe, it, beforeEach } = require('mocha')
 const assert = require('assert')
 const proxyquire = require('proxyquire')
 const hoodwink = require('hoodwink')
diff --git a/test/integration/addresses.js b/test/integration/addresses.js
index 412e792..4bd71c8 100644
--- a/test/integration/addresses.js
+++ b/test/integration/addresses.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const bitcoin = require('../../')
 const dhttp = require('dhttp/200')
diff --git a/test/integration/bip32.js b/test/integration/bip32.js
index 3d2f12c..27a2da4 100644
--- a/test/integration/bip32.js
+++ b/test/integration/bip32.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const bip32 = require('bip32')
 const bip39 = require('bip39')
diff --git a/test/integration/blocks.js b/test/integration/blocks.js
index a0bdea3..915fd65 100644
--- a/test/integration/blocks.js
+++ b/test/integration/blocks.js
@@ -1,6 +1,6 @@
-/* global describe, it */
 'use strict'
 
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const bitcoin = require('../../')
 
diff --git a/test/integration/cltv.js b/test/integration/cltv.js
index 626c7e9..edd4b61 100644
--- a/test/integration/cltv.js
+++ b/test/integration/cltv.js
@@ -1,5 +1,4 @@
-/* global describe, it, before */
-
+const { describe, it, before } = require('mocha')
 const assert = require('assert')
 const bitcoin = require('../../')
 const regtestUtils = require('./_regtest')
diff --git a/test/integration/crypto.js b/test/integration/crypto.js
index 864f4e7..bc4a9bc 100644
--- a/test/integration/crypto.js
+++ b/test/integration/crypto.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const BN = require('bn.js')
 const bitcoin = require('../../')
diff --git a/test/integration/csv.js b/test/integration/csv.js
index e0ad02f..f0db2e4 100644
--- a/test/integration/csv.js
+++ b/test/integration/csv.js
@@ -1,5 +1,4 @@
-/* global describe, it, before */
-
+const { describe, it, before } = require('mocha')
 const assert = require('assert')
 const bitcoin = require('../../')
 const regtestUtils = require('./_regtest')
diff --git a/test/integration/payments.js b/test/integration/payments.js
index d319f60..44acea2 100644
--- a/test/integration/payments.js
+++ b/test/integration/payments.js
@@ -1,7 +1,6 @@
-/* global describe, it */
-
 const bitcoin = require('../../')
 
+const { describe, it } = require('mocha')
 const regtestUtils = require('./_regtest')
 const NETWORK = regtestUtils.network
 const keyPairs = [
diff --git a/test/integration/stealth.js b/test/integration/stealth.js
index 813f48b..dd99d63 100644
--- a/test/integration/stealth.js
+++ b/test/integration/stealth.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const bitcoin = require('../../')
 const ecc = require('tiny-secp256k1')
diff --git a/test/integration/transactions.js b/test/integration/transactions.js
index ef95d53..4d344a5 100644
--- a/test/integration/transactions.js
+++ b/test/integration/transactions.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const bitcoin = require('../../')
 const regtestUtils = require('./_regtest')
diff --git a/test/payments.js b/test/payments.js
index 3af6699..3c07bf3 100644
--- a/test/payments.js
+++ b/test/payments.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const u = require('./payments.utils')
 
diff --git a/test/payments.utils.js b/test/payments.utils.js
index 6a7af32..219d086 100644
--- a/test/payments.utils.js
+++ b/test/payments.utils.js
@@ -1,6 +1,6 @@
-let t = require('assert')
-let bscript = require('../src/script')
-let bnetworks = require('../src/networks')
+const t = require('assert')
+const bscript = require('../src/script')
+const bnetworks = require('../src/networks')
 
 function tryHex (x) {
   if (Buffer.isBuffer(x)) return x.toString('hex')
diff --git a/test/script.js b/test/script.js
index 269e18a..c2a60ad 100644
--- a/test/script.js
+++ b/test/script.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const bscript = require('../src/script')
 const minimalData = require('minimaldata')
diff --git a/test/script_number.js b/test/script_number.js
index d217ff1..bc8f395 100644
--- a/test/script_number.js
+++ b/test/script_number.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const scriptNumber = require('../src/script_number')
 const fixtures = require('./fixtures/script_number.json')
diff --git a/test/script_signature.js b/test/script_signature.js
index 9908ebc..cee69bd 100644
--- a/test/script_signature.js
+++ b/test/script_signature.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const bscriptSig = require('../src/script').signature
 const Buffer = require('safe-buffer').Buffer
diff --git a/test/transaction.js b/test/transaction.js
index e249631..f8b7de9 100644
--- a/test/transaction.js
+++ b/test/transaction.js
@@ -1,5 +1,4 @@
-/* global describe, it, beforeEach */
-
+const { describe, it, beforeEach } = require('mocha')
 const assert = require('assert')
 const bscript = require('../src/script')
 const fixtures = require('./fixtures/transaction')
diff --git a/test/transaction_builder.js b/test/transaction_builder.js
index 34ec9da..88ab286 100644
--- a/test/transaction_builder.js
+++ b/test/transaction_builder.js
@@ -1,5 +1,4 @@
-/* global describe, it, beforeEach */
-
+const { describe, it, beforeEach } = require('mocha')
 const assert = require('assert')
 const baddress = require('../src/address')
 const bcrypto = require('../src/crypto')
diff --git a/test/types.js b/test/types.js
index adc6f35..d245d53 100644
--- a/test/types.js
+++ b/test/types.js
@@ -1,5 +1,4 @@
-/* global describe, it */
-
+const { describe, it } = require('mocha')
 const assert = require('assert')
 const types = require('../src/types')
 const typeforce = require('typeforce')