diff --git a/jest.config.js b/jest.config.js
index 0ae119b68..6f226384f 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -23,8 +23,5 @@ module.exports = Object.assign({}, config, {
     '<rootDir>/packages/x-textencoder/build',
     '<rootDir>/packages/x-ws/build'
   ],
-  resolver: '@polkadot/dev/config/jest-resolver',
-  setupFilesAfterEnv: [
-    '@polkadot/dev/config/jest-crypto'
-  ]
+  resolver: '@polkadot/dev/config/jest-resolver'
 });
diff --git a/packages/util-crypto/package.json b/packages/util-crypto/package.json
index c71ec502e..422265f09 100644
--- a/packages/util-crypto/package.json
+++ b/packages/util-crypto/package.json
@@ -28,7 +28,7 @@
     "@babel/runtime": "^7.12.1",
     "@polkadot/networks": "^4.0.0-7",
     "@polkadot/util": "^4.0.0-7",
-    "@polkadot/wasm-crypto": "^2.0.0-9",
+    "@polkadot/wasm-crypto": "^2.0.0-10",
     "@polkadot/x-randomvalues": "^4.0.0-7",
     "base-x": "^3.0.8",
     "blakejs": "^1.1.0",
diff --git a/packages/x-fetch/package.json b/packages/x-fetch/package.json
index 60a881863..e0561a7c0 100644
--- a/packages/x-fetch/package.json
+++ b/packages/x-fetch/package.json
@@ -4,6 +4,7 @@
   "description": "A cross-environment fetch replacement",
   "browser": "browser.js",
   "main": "node.js",
+  "react-native": "react-native.js",
   "author": "Jaco Greeff <jacogr@gmail.com>",
   "maintainers": [
     "Jaco Greeff <jacogr@gmail.com>"
diff --git a/packages/x-fetch/src/react-native.ts b/packages/x-fetch/src/react-native.ts
new file mode 100644
index 000000000..dcebe2d3e
--- /dev/null
+++ b/packages/x-fetch/src/react-native.ts
@@ -0,0 +1,6 @@
+// Copyright 2017-2020 @polkadot/x-fetch authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import browser from './browser';
+
+export default browser;
diff --git a/packages/x-textdecoder/package.json b/packages/x-textdecoder/package.json
index 2f31443a2..031f64e57 100644
--- a/packages/x-textdecoder/package.json
+++ b/packages/x-textdecoder/package.json
@@ -4,6 +4,7 @@
   "description": "A TextDecoder replacement",
   "browser": "browser.js",
   "main": "node.js",
+  "react-native": "react-native.js",
   "author": "Jaco Greeff <jacogr@gmail.com>",
   "maintainers": [
     "Jaco Greeff <jacogr@gmail.com>"
diff --git a/packages/x-textdecoder/src/react-native.ts b/packages/x-textdecoder/src/react-native.ts
new file mode 100644
index 000000000..3ab23af1c
--- /dev/null
+++ b/packages/x-textdecoder/src/react-native.ts
@@ -0,0 +1,6 @@
+// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import browser from './browser';
+
+export default browser;
diff --git a/packages/x-textencoder/package.json b/packages/x-textencoder/package.json
index f9ee21b51..04c14a5f7 100644
--- a/packages/x-textencoder/package.json
+++ b/packages/x-textencoder/package.json
@@ -4,6 +4,7 @@
   "description": "A TextDecoder replacement",
   "browser": "browser.js",
   "main": "node.js",
+  "react-native": "react-native.js",
   "author": "Jaco Greeff <jacogr@gmail.com>",
   "maintainers": [
     "Jaco Greeff <jacogr@gmail.com>"
diff --git a/packages/x-textencoder/src/react-native.ts b/packages/x-textencoder/src/react-native.ts
new file mode 100644
index 000000000..3ab23af1c
--- /dev/null
+++ b/packages/x-textencoder/src/react-native.ts
@@ -0,0 +1,6 @@
+// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import browser from './browser';
+
+export default browser;
diff --git a/packages/x-ws/package.json b/packages/x-ws/package.json
index e3e02bdf5..ba0c48193 100644
--- a/packages/x-ws/package.json
+++ b/packages/x-ws/package.json
@@ -4,6 +4,7 @@
   "description": "A cross-environment WebSocket replacement",
   "browser": "browser.js",
   "main": "node.js",
+  "react-native": "react-native.js",
   "author": "Jaco Greeff <jacogr@gmail.com>",
   "maintainers": [
     "Jaco Greeff <jacogr@gmail.com>"
diff --git a/packages/x-ws/src/react-native.ts b/packages/x-ws/src/react-native.ts
new file mode 100644
index 000000000..5412b5266
--- /dev/null
+++ b/packages/x-ws/src/react-native.ts
@@ -0,0 +1,6 @@
+// Copyright 2017-2020 @polkadot/x-ws authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import browser from './browser';
+
+export default browser;
diff --git a/yarn.lock b/yarn.lock
index 0aee71621..9bc098f43 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1861,7 +1861,7 @@ __metadata:
     "@babel/runtime": ^7.12.1
     "@polkadot/networks": ^4.0.0-7
     "@polkadot/util": ^4.0.0-7
-    "@polkadot/wasm-crypto": ^2.0.0-9
+    "@polkadot/wasm-crypto": ^2.0.0-10
     "@polkadot/x-randomvalues": ^4.0.0-7
     "@types/bn.js": ^4.11.6
     "@types/create-hash": ^1.2.2
@@ -1896,13 +1896,13 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/wasm-crypto@npm:^2.0.0-9":
-  version: 2.0.0-9
-  resolution: "@polkadot/wasm-crypto@npm:2.0.0-9"
+"@polkadot/wasm-crypto@npm:^2.0.0-10":
+  version: 2.0.0-10
+  resolution: "@polkadot/wasm-crypto@npm:2.0.0-10"
   peerDependencies:
     "@polkadot/util": "*"
     "@polkadot/x-randomvalues": "*"
-  checksum: 7bbe141f926f4cd4d0d03b0d187fb6ab8efb668a0bc28f489bd6a60316136d300d02a6c85b8ddc9466c7ee06abd4a347f1255c9d96feb82bd421f7a7e39b7111
+  checksum: 1217c72172b3781608280bd6c001b199ada00cec14326b27d081e1904967fc0246f512d1cd74bd15797c87f39d2efec2d639d89c608c0bcf140ec05ff8fe7564
   languageName: node
   linkType: hard