diff --git a/package.json b/package.json
index 348b8e1ffc31..c02cb393e37e 100644
--- a/package.json
+++ b/package.json
@@ -16,9 +16,9 @@
     "dapp-forwarder": "concurrently -k -n forwarder,dapp -p '[{time}][{name}]' 'yarn forwarder' 'yarn dapp'",
     "watch:test:unit": "nodemon --exec \"yarn test:unit\" ./test ./app ./ui",
     "sendwithprivatedapp": "node development/static-server.js test/e2e/send-eth-with-private-key-test --port 8080",
-    "test:unit": "cross-env METAMASK_ENV=test mocha --exit --require test/setup.js --recursive \"test/unit/**/*.js\" \"ui/app/**/*.test.js\"",
-    "test:unit:global": "cross-env METAMASK_ENV=test mocha --exit --require test/setup.js --recursive mocha test/unit-global/*",
-    "test:single": "cross-env METAMASK_ENV=test mocha --require test/helper.js",
+    "test:unit": "mocha --exit --require test/env.js --require test/setup.js --recursive \"test/unit/**/*.js\" \"ui/app/**/*.test.js\"",
+    "test:unit:global": "mocha --exit --require test/env.js --require test/setup.js --recursive mocha test/unit-global/*",
+    "test:single": "mocha --require test/env.js --require test/helper.js",
     "test:integration": "yarn test:integration:build && yarn test:flat",
     "test:integration:build": "gulp build:scss",
     "test:e2e:chrome": "SELENIUM_BROWSER=chrome test/e2e/run-all.sh",
@@ -44,7 +44,7 @@
     "verify-locales": "node ./development/verify-locale-strings.js",
     "verify-locales:fix": "node ./development/verify-locale-strings.js --fix",
     "mozilla-lint": "addons-linter dist/firefox",
-    "watch": "cross-env METAMASK_ENV=test mocha --watch --require test/setup.js --reporter min --recursive \"test/unit/**/*.js\" \"ui/app/**/*.test.js\"",
+    "watch": "mocha --watch --require test/env.js --require test/setup.js --reporter min --recursive \"test/unit/**/*.js\" \"ui/app/**/*.test.js\"",
     "devtools:react": "react-devtools",
     "devtools:redux": "remotedev --hostname=localhost --port=8000",
     "start:dev": "concurrently -k -n build,react,redux yarn:start yarn:devtools:react yarn:devtools:redux",
@@ -199,7 +199,6 @@
     "chromedriver": "^79.0.0",
     "concurrently": "^4.1.1",
     "coveralls": "^3.0.0",
-    "cross-env": "^5.1.4",
     "css-loader": "^2.1.1",
     "del": "^3.0.0",
     "deps-dump": "^1.1.0",
diff --git a/test/env.js b/test/env.js
new file mode 100644
index 000000000000..1fbdad3dff08
--- /dev/null
+++ b/test/env.js
@@ -0,0 +1 @@
+process.env.METAMASK_ENV = 'test'
diff --git a/yarn.lock b/yarn.lock
index a8aae95caa5b..232efa3f3b90 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7870,14 +7870,6 @@ create-react-context@^0.2.1:
     fbjs "^0.8.0"
     gud "^1.0.0"
 
-cross-env@^5.1.4:
-  version "5.1.4"
-  resolved "https://registry.yarnpkg.com/cross-env/-/cross-env-5.1.4.tgz#f61c14291f7cc653bb86457002ea80a04699d022"
-  integrity sha512-Mx8mw6JWhfpYoEk7PGvHxJMLQwQHORAs8+2bX+C1lGQ4h3GkDb1zbzC2Nw85YH9ZQMlO0BHZxMacgrfPmMFxbg==
-  dependencies:
-    cross-spawn "^5.1.0"
-    is-windows "^1.0.0"
-
 cross-fetch@2.2.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/cross-fetch/-/cross-fetch-2.2.2.tgz#a47ff4f7fc712daba8f6a695a11c948440d45723"
@@ -16000,7 +15992,7 @@ is-windows@^0.2.0:
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-0.2.0.tgz#de1aa6d63ea29dd248737b69f1ff8b8002d2108c"
   integrity sha1-3hqm1j6indJIc3tp8f+LgALSEIw=
 
-is-windows@^1.0.0, is-windows@^1.0.1, is-windows@^1.0.2:
+is-windows@^1.0.1, is-windows@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
   integrity sha512-eXK1UInq2bPmjyX6e3VHIzMLobc4J94i4AWn+Hpq3OU5KkrRC96OAcR3PRJ/pGu6m8TRnBHP9dkXQVsT/COVIA==