diff --git a/lib/fs.js b/lib/fs.js
index d8131fa..bc8e867 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -9,13 +9,13 @@ promises.rm = promises.rm || async function (...args) {
   const options = args[1] || {}
 
   try {
-    const stat = await fs.stat(pathToRemove, { throwIfNoEntry: false })
+    const stat = await promises.stat(pathToRemove, { throwIfNoEntry: false })
     const isDirectory = stat.isDirectory()
 
     if (isDirectory) {
-      await fs.rmdir(pathToRemove, options)
+      await promises.rmdir(pathToRemove, options)
     } else {
-      await fs.unlink(pathToRemove)
+      await promises.unlink(pathToRemove)
     }
   } catch (err) {
     if (err.code === 'ENOENT' && options.force) {
diff --git a/test/test-configure-nodedir.js b/test/test-configure-nodedir.js
index a6debde..e74cc65 100644
--- a/test/test-configure-nodedir.js
+++ b/test/test-configure-nodedir.js
@@ -10,7 +10,7 @@ const semver = require('semver')
 
 const versionSemver = semver.parse(process.version)
 
-const configure = requireInject('../lib/configure', {
+const configure = requireInject.withEmptyCache('../lib/configure', {
   'graceful-fs': {
     openSync: () => 0,
     closeSync: () => {},
@@ -26,7 +26,7 @@ const configure = requireInject('../lib/configure', {
   }
 })
 
-const configure2 = requireInject('../lib/configure', {
+const configure2 = requireInject.withEmptyCache('../lib/configure', {
   'graceful-fs': {
     openSync: () => 0,
     closeSync: () => {},
diff --git a/test/test-configure-python.js b/test/test-configure-python.js
index 094e791..8767c04 100644
--- a/test/test-configure-python.js
+++ b/test/test-configure-python.js
@@ -7,7 +7,7 @@ const { devDir } = require('./common')
 const gyp = require('../lib/node-gyp')
 const requireInject = require('require-inject')
 
-const configure = requireInject('../lib/configure', {
+const configure = requireInject.withEmptyCache('../lib/configure', {
   'graceful-fs': {
     openSync: () => 0,
     closeSync: () => {},
diff --git a/test/test-find-accessible-sync.js b/test/test-find-accessible-sync.js
index 0c8a5dd..5d0013a 100644
--- a/test/test-find-accessible-sync.js
+++ b/test/test-find-accessible-sync.js
@@ -4,7 +4,7 @@ const { describe, it } = require('mocha')
 const assert = require('assert')
 const path = require('path')
 const requireInject = require('require-inject')
-const { findAccessibleSync } = requireInject('../lib/util', {
+const { findAccessibleSync } = requireInject.withEmptyCache('../lib/util', {
   'graceful-fs': {
     closeSync: function () { return undefined },
     openSync: function (path) {
diff --git a/test/test-install.js b/test/test-install.js
index de91b26..d6882c9 100644
--- a/test/test-install.js
+++ b/test/test-install.js
@@ -16,7 +16,7 @@ const { download } = require('../lib/download')
 describe('install', function () {
   it('EACCES retry once', async () => {
     let statCalled = 0
-    const mockInstall = requireInject('../lib/install', {
+    const mockInstall = requireInject.withEmptyCache('../lib/install', {
       'graceful-fs': {
         promises: {
           stat (_) {