diff --git a/test/check-response.js b/test/check-response.js
index e9e1e34a..736ddd21 100644
--- a/test/check-response.js
+++ b/test/check-response.js
@@ -81,7 +81,7 @@ t.test('log x-fetch-attempts header value', async t => {
 t.test('log the url fetched', t => {
   const headers = new Headers()
   const EE = require('events')
-  headers.get = header => undefined
+  headers.get = () => undefined
   const res = Object.assign({}, mockFetchRes, {
     headers,
     status: 200,
@@ -110,7 +110,7 @@ t.test('log the url fetched', t => {
 t.test('redact password from log', t => {
   const headers = new Headers()
   const EE = require('events')
-  headers.get = header => undefined
+  headers.get = () => undefined
   const res = Object.assign({}, mockFetchRes, {
     headers,
     status: 200,
@@ -138,7 +138,7 @@ t.test('redact password from log', t => {
 t.test('redact well known token from log', t => {
   const headers = new Headers()
   const EE = require('events')
-  headers.get = header => undefined
+  headers.get = () => undefined
   const res = Object.assign({}, mockFetchRes, {
     headers,
     status: 200,
diff --git a/test/errors.js b/test/errors.js
index fb71d783..26cad0df 100644
--- a/test/errors.js
+++ b/test/errors.js
@@ -141,7 +141,7 @@ t.test('OTP error with prompt', async t => {
       }
       return true
     })
-    .reply((...args) => {
+    .reply(() => {
       if (OTP === '12345') {
         return [200, { ok: 'this is fine' }, {}]
       } else {
@@ -171,7 +171,7 @@ t.test('OTP error with prompt, expired OTP in settings', async t => {
       }
       return true
     })
-    .reply((...args) => {
+    .reply(() => {
       if (OTP === '12345') {
         return [200, { ok: 'this is fine' }, {}]
       } else {
@@ -189,7 +189,7 @@ t.test('OTP error with prompt, expired OTP in settings', async t => {
 t.test('OTP error with prompt that fails', t => {
   tnock(t, OPTS.registry)
     .get('/otplease')
-    .reply((...args) => {
+    .reply(() => {
       return [401, { error: 'otp, please' }, { 'www-authenticate': 'otp' }]
     })
 
@@ -202,7 +202,7 @@ t.test('OTP error with prompt that fails', t => {
 t.test('OTP error with prompt that returns nothing', t => {
   tnock(t, OPTS.registry)
     .get('/otplease')
-    .reply((...args) => {
+    .reply(() => {
       return [401, { error: 'otp, please' }, { 'www-authenticate': 'otp' }]
     })