diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 30963d12..10b9e3b7 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -2512,11 +2512,6 @@
       "resolved": "https://registry.npmjs.org/file-entry-cache/-/file-entry-cache-2.0.0.tgz",
       "dev": true
     },
-    "file-exists": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/file-exists/-/file-exists-1.0.0.tgz",
-      "dev": true
-    },
     "file-name": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/file-name/-/file-name-0.1.0.tgz",
@@ -6344,10 +6339,6 @@
       "resolved": "https://registry.npmjs.org/tracery/-/tracery-1.0.3.tgz",
       "dev": true
     },
-    "trackjs": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/trackjs/-/trackjs-2.3.1.tgz"
-    },
     "traverse": {
       "version": "0.3.9",
       "resolved": "https://registry.npmjs.org/traverse/-/traverse-0.3.9.tgz",
diff --git a/package.json b/package.json
index c1f24d10..f1f1646b 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,6 @@
     "semver": "5.1.1",
     "speedometer": "1.0.0",
     "sudo-prompt": "8.0.0",
-    "trackjs": "2.3.1",
     "udif": "0.13.0",
     "unbzip2-stream": "github:resin-io-modules/unbzip2-stream#core-streams",
     "usb": "github:tessel/node-usb#1.3.0",
@@ -106,7 +105,6 @@
     "eslint-plugin-node": "6.0.0",
     "eslint-plugin-promise": "3.6.0",
     "eslint-plugin-standard": "3.0.1",
-    "file-exists": "1.0.0",
     "html-angular-validate": "0.1.9",
     "mocha": "3.2.0",
     "mochainon": "1.0.0",
diff --git a/tests/image-stream/tester.js b/tests/image-stream/tester.js
index c280116b..f243d25e 100644
--- a/tests/image-stream/tester.js
+++ b/tests/image-stream/tester.js
@@ -19,7 +19,6 @@
 const m = require('mochainon')
 const _ = require('lodash')
 const Bluebird = require('bluebird')
-const fileExists = require('file-exists')
 const fs = Bluebird.promisifyAll(require('fs'))
 const os = require('os')
 const path = require('path')
@@ -34,16 +33,6 @@ const doFilesContainTheSameData = (file1, file2) => {
   })
 }
 
-const deleteIfExists = (file) => {
-  return Bluebird.try(function () {
-    if (fileExists(file)) {
-      return fs.unlinkAsync(file)
-    }
-
-    return Bluebird.resolve()
-  })
-}
-
 exports.DEFAULT_IMAGE_TESTS_TIMEOUT = 20000
 
 exports.expectError = function (file, errorMessage, errorDetail) {
@@ -89,7 +78,8 @@ exports.extractFromFilePath = function (file, image) {
     }).then(function (areEqual) {
       m.chai.expect(areEqual).to.be.true
     }).finally(function () {
-      return deleteIfExists(output)
+      return fs.unlinkAsync(output)
+        .catch({ code: 'ENOENT' }, _.noop)
     })
   })
 }