diff --git a/test/ie.test.js b/test/ie.test.js
deleted file mode 100644
index b11d6504..00000000
--- a/test/ie.test.js
+++ /dev/null
@@ -1,21 +0,0 @@
-let { test } = require('uvu')
-let { throws } = require('uvu/assert')
-
-test.before(() => {
-  global.msCrypto = {}
-  delete global.crypto
-})
-
-test.after(() => {
-  delete global.msCrypto
-})
-
-test('shows error in IE', () => {
-  throws(() => {
-    // Since uvu runs all tests within same context, ensure to clear require cache
-    delete require.cache[require.resolve('../index.browser')]
-    require('../index.browser')
-  }, /IE 11/)
-})
-
-test.run()
diff --git a/test/old-browser.test.js b/test/old-browser.test.js
deleted file mode 100644
index d075d6f0..00000000
--- a/test/old-browser.test.js
+++ /dev/null
@@ -1,14 +0,0 @@
-let { test } = require('uvu')
-let { throws } = require('uvu/assert')
-
-test.before(() => {
-  delete global.crypto
-})
-
-test('warns to use non-secure generator on old browsers', () => {
-  throws(() => {
-    require('../index.browser')
-  }, /use nanoid\/non-secure/)
-})
-
-test.run()
diff --git a/test/react-native.test.js b/test/react-native.test.js
deleted file mode 100644
index e2987f25..00000000
--- a/test/react-native.test.js
+++ /dev/null
@@ -1,22 +0,0 @@
-let { test } = require('uvu')
-let { throws } = require('uvu/assert')
-
-test.before(() => {
-  global.navigator = {
-    product: 'ReactNative'
-  }
-})
-
-test.after(() => {
-  delete global.navigator
-})
-
-test('tells to use non-secure generator on old browsers', () => {
-  throws(() => {
-    // Since uvu runs all tests within same context, ensure to clear require cache
-    delete require.cache[require.resolve('../index.browser')]
-    require('../index.browser')
-  }, /React Native does not have/)
-})
-
-test.run()