diff --git a/package.json b/package.json
index 80f68d701d..cffdeef0aa 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "@babel/core": "^7.3.3",
     "@babel/register": "^7.0.0",
     "@babel/runtime": "^7.3.4",
-    "@polkadot/dev": "^0.26.1",
+    "@polkadot/dev": "^0.27.1",
     "@polkadot/ts": "^0.1.56",
     "gh-pages": "^2.0.1"
   }
diff --git a/packages/api/package.json b/packages/api/package.json
index e61c4daf91..09e248a507 100644
--- a/packages/api/package.json
+++ b/packages/api/package.json
@@ -36,6 +36,6 @@
     "@polkadot/rpc-rx": "^0.48.0-beta.0",
     "@polkadot/storage": "^0.48.0-beta.0",
     "@polkadot/types": "^0.48.0-beta.0",
-    "@polkadot/util-crypto": "^0.37.1"
+    "@polkadot/util-crypto": "^0.38.0-beta.4"
   }
 }
diff --git a/packages/api/test/e2e/promise-queries.spec.js b/packages/api/test/e2e/promise-queries.spec.js
index 27766be886..296c180284 100644
--- a/packages/api/test/e2e/promise-queries.spec.js
+++ b/packages/api/test/e2e/promise-queries.spec.js
@@ -7,9 +7,8 @@ import testingPairs from '@polkadot/keyring/testingPairs';
 
 import Api from '../../src/promise';
 
-const keyring = testingPairs({ type: 'ed25519' });
-
 describe.skip('e2e queries', () => {
+  const keyring = testingPairs({ type: 'ed25519' });
   let api;
 
   beforeEach(async (done) => {
diff --git a/packages/api/test/e2e/promise-tx.spec.js b/packages/api/test/e2e/promise-tx.spec.js
index 3881aefea2..163a86f941 100644
--- a/packages/api/test/e2e/promise-tx.spec.js
+++ b/packages/api/test/e2e/promise-tx.spec.js
@@ -2,8 +2,6 @@
 // This software may be modified and distributed under the terms
 // of the Apache-2.0 license. See the LICENSE file for details.
 
-import '@polkadot/util-crypto/schnorrkel/test-polyfill';
-
 import testingPairs from '@polkadot/keyring/testingPairs';
 import createPair from '@polkadot/keyring/pair';
 import { randomAsHex } from '@polkadot/util-crypto';
@@ -13,9 +11,8 @@ import Api from '../../src/promise';
 import WsProvider from '../../../rpc-provider/src/ws';
 import SingleAccountSigner from "../util/SingleAccountSigner";
 
-const keyring = testingPairs({ type: 'ed25519' });
-
 describe.skip('e2e transactions', () => {
+  const keyring = testingPairs({ type: 'ed25519' });
   let api;
 
   beforeEach(async (done) => {
diff --git a/packages/api/test/e2e/rx-queries.spec.js b/packages/api/test/e2e/rx-queries.spec.js
index e2a70aa535..cffccc36af 100644
--- a/packages/api/test/e2e/rx-queries.spec.js
+++ b/packages/api/test/e2e/rx-queries.spec.js
@@ -7,9 +7,8 @@ import testingPairs from '@polkadot/keyring/testingPairs';
 
 import Api from '../../src/rx';
 
-const keyring = testingPairs({ type: 'ed25519' });
-
 describe.skip('e2e queries', () => {
+  const keyring = testingPairs({ type: 'ed25519' });
   let api;
 
   beforeEach(async (done) => {
diff --git a/packages/api/test/e2e/rx-tx.spec.js b/packages/api/test/e2e/rx-tx.spec.js
index 636517355e..7286ccd1e8 100644
--- a/packages/api/test/e2e/rx-tx.spec.js
+++ b/packages/api/test/e2e/rx-tx.spec.js
@@ -7,9 +7,8 @@ import testingPairs from '@polkadot/keyring/testingPairs';
 
 import Api from '../../src/rx';
 
-const keyring = testingPairs({ type: 'ed25519' });
-
 describe.skip('e2e transactions', () => {
+  const keyring = testingPairs({ type: 'ed25519' });
   let api;
 
   beforeEach(async (done) => {
diff --git a/packages/rpc-core/package.json b/packages/rpc-core/package.json
index 9c9cb3176d..7743fd3e8b 100644
--- a/packages/rpc-core/package.json
+++ b/packages/rpc-core/package.json
@@ -33,6 +33,6 @@
     "@polkadot/jsonrpc": "^0.48.0-beta.0",
     "@polkadot/rpc-provider": "^0.48.0-beta.0",
     "@polkadot/types": "^0.48.0-beta.0",
-    "@polkadot/util": "^0.37.1"
+    "@polkadot/util": "^0.38.0-beta.4"
   }
 }
diff --git a/packages/rpc-provider/package.json b/packages/rpc-provider/package.json
index de0603698d..98fd98b174 100644
--- a/packages/rpc-provider/package.json
+++ b/packages/rpc-provider/package.json
@@ -30,10 +30,10 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/rpc-provider#readme",
   "dependencies": {
     "@babel/runtime": "^7.3.4",
-    "@polkadot/keyring": "^0.37.1",
+    "@polkadot/keyring": "^0.38.0-beta.4",
     "@polkadot/storage": "^0.48.0-beta.0",
-    "@polkadot/util": "^0.37.1",
-    "@polkadot/util-crypto": "^0.37.1",
+    "@polkadot/util": "^0.38.0-beta.4",
+    "@polkadot/util-crypto": "^0.38.0-beta.4",
     "@types/nock": "^9.3.1",
     "eventemitter3": "^3.1.0",
     "isomorphic-fetch": "^2.2.1",
diff --git a/packages/type-extrinsics/package.json b/packages/type-extrinsics/package.json
index 914e1f1dc0..0c8a250127 100644
--- a/packages/type-extrinsics/package.json
+++ b/packages/type-extrinsics/package.json
@@ -12,6 +12,6 @@
   "dependencies": {
     "@babel/runtime": "^7.3.4",
     "@polkadot/types": "^0.48.0-beta.0",
-    "@polkadot/util": "^0.37.1"
+    "@polkadot/util": "^0.38.0-beta.4"
   }
 }
diff --git a/packages/type-extrinsics/src/index.spec.ts b/packages/type-extrinsics/src/index.spec.ts
index b491446be6..62c7598ec7 100644
--- a/packages/type-extrinsics/src/index.spec.ts
+++ b/packages/type-extrinsics/src/index.spec.ts
@@ -7,7 +7,7 @@ import { Extrinsic } from '@polkadot/types';
 
 import extrinsics from './static';
 
-const keyring = testingPairs({ type: 'ed25519' });
+const keyring = testingPairs({ type: 'ed25519' }, false);
 
 describe('extrinsics', () => {
   it('encodes extrinsic correctly (nobody)', () => {
diff --git a/packages/type-storage/package.json b/packages/type-storage/package.json
index acb07f8382..4488889828 100644
--- a/packages/type-storage/package.json
+++ b/packages/type-storage/package.json
@@ -30,9 +30,9 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/type-storage#readme",
   "dependencies": {
     "@babel/runtime": "^7.3.4",
-    "@polkadot/keyring": "^0.37.1",
+    "@polkadot/keyring": "^0.38.0-beta.4",
     "@polkadot/types": "^0.48.0-beta.0",
-    "@polkadot/util": "^0.37.1",
-    "@polkadot/util-crypto": "^0.37.1"
+    "@polkadot/util": "^0.38.0-beta.4",
+    "@polkadot/util-crypto": "^0.38.0-beta.4"
   }
 }
diff --git a/packages/types/package.json b/packages/types/package.json
index a329230fc2..af34d767f8 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -30,8 +30,8 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/types#readme",
   "dependencies": {
     "@babel/runtime": "^7.3.4",
-    "@polkadot/keyring": "^0.37.1",
-    "@polkadot/util": "^0.37.1",
+    "@polkadot/keyring": "^0.38.0-beta.4",
+    "@polkadot/util": "^0.38.0-beta.4",
     "core-js": "^2.6.5"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 4ec332969f..e501a8ff46 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1393,10 +1393,10 @@
     universal-user-agent "^2.0.0"
     url-template "^2.0.8"
 
-"@polkadot/dev@^0.26.1":
-  version "0.26.1"
-  resolved "https://registry.yarnpkg.com/@polkadot/dev/-/dev-0.26.1.tgz#609bd1f43860a7172e45be76a529af24c598f546"
-  integrity sha512-m1BBk8QlQRGxFouwWNdK4kDHPUQEIbSCAB3VUiHstFeR+zto5II7zytX7wKHRH8Bn7U5CiW3PWpJ85MR4oodDA==
+"@polkadot/dev@^0.27.1":
+  version "0.27.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/dev/-/dev-0.27.1.tgz#63ef2439bac8131d368ba80bf7dc8d09c0e2e927"
+  integrity sha512-EN60509R89FNJsoNWH87G3buCd717Mx3wrexLLkd+IURl52shFjv12HqpSdW09mMwxhUZMOmmqwYoFdRnkOFag==
   dependencies:
     "@babel/cli" "^7.2.3"
     "@babel/core" "^7.3.4"
@@ -1429,35 +1429,35 @@
     typescript "^3.3.3333"
     vuepress "^1.0.0-alpha.40"
 
-"@polkadot/keyring@^0.37.1":
-  version "0.37.1"
-  resolved "https://registry.yarnpkg.com/@polkadot/keyring/-/keyring-0.37.1.tgz#8e25dee196a8e52dd76208b8fb9965e906af8828"
-  integrity sha512-c2FkdlvGcBPn+ymQIchuR6wciNxBLQpjNAjfTzdesdGpIZMl+wn0plYfJ3c6YjbD9BP1mGHGX/cT2MFqVdOI/g==
+"@polkadot/keyring@^0.38.0-beta.4":
+  version "0.38.0-beta.4"
+  resolved "https://registry.yarnpkg.com/@polkadot/keyring/-/keyring-0.38.0-beta.4.tgz#18e89f234fb60764c973f9f992b225105f03aaf4"
+  integrity sha512-xm5tRsXISF6jWCbL/8pq8yqAsvVp3yFnYlyAd/u+Oj/XEQR5Vij26y7eQUXyX6pFYRtFda/RSaNLWkKDHoUJbQ==
   dependencies:
     "@babel/runtime" "^7.3.4"
-    "@polkadot/util" "^0.37.1"
-    "@polkadot/util-crypto" "^0.37.1"
+    "@polkadot/util" "^0.38.0-beta.4"
+    "@polkadot/util-crypto" "^0.38.0-beta.4"
     "@types/bs58" "^4.0.0"
     bs58 "^4.0.1"
 
-"@polkadot/schnorrkel-js@^0.1.2-3":
-  version "0.1.2-3"
-  resolved "https://registry.yarnpkg.com/@polkadot/schnorrkel-js/-/schnorrkel-js-0.1.2-3.tgz#9117ac5126b465a1cf53c2b6bb68a17efc7e0390"
-  integrity sha512-1LgF4wtER3q5uqY67CdOsQQ/SBqT6v0ZKQIS3cOTVByF16WtApD6U324uCJyMdie+GZFv0xr/40I4Ni2It+8jw==
+"@polkadot/schnorrkel-js@^0.2.0-12":
+  version "0.2.0-12"
+  resolved "https://registry.yarnpkg.com/@polkadot/schnorrkel-js/-/schnorrkel-js-0.2.0-12.tgz#fd70f3b79d2c7a97874c26ae41bf331ef8763b77"
+  integrity sha512-S/tbdME58VDzP5nXE4kWseZnrWGkaMFFmEdW43KlwGlWvxNMREpgncUdDfTFip6lDahcKNSU98n+QJJlkaSB+A==
 
 "@polkadot/ts@^0.1.56":
   version "0.1.56"
   resolved "https://registry.yarnpkg.com/@polkadot/ts/-/ts-0.1.56.tgz#ffd6e9c95704a7fb90b918193b9dc5c440114b27"
   integrity sha512-wnt4zXxZXyz6WaubTO/I+nUElwV2DogFzdl6CrKfVn2PTWp8uHN06W9s40FH57ORtmQfDr9rLRP8Nq+oIyElbg==
 
-"@polkadot/util-crypto@^0.37.1":
-  version "0.37.1"
-  resolved "https://registry.yarnpkg.com/@polkadot/util-crypto/-/util-crypto-0.37.1.tgz#dfbb00258d2cdaf28ef9629ce16aae1d8198c8d7"
-  integrity sha512-j6/xARFCeWK/nIJb2Wi0xVkyCGANyyFM1eC0WCVslX4+DXjo9VqLAYlonBxfVPArC5gVkeKS2xESuXYN2QJCJA==
+"@polkadot/util-crypto@^0.38.0-beta.4":
+  version "0.38.0-beta.4"
+  resolved "https://registry.yarnpkg.com/@polkadot/util-crypto/-/util-crypto-0.38.0-beta.4.tgz#a26bc2409baef56d5d8213a08bf91a92322ecbc8"
+  integrity sha512-fTxrv7CipaMrmjFi4Dy+r3BqhC8WIOfRAUCRXCkaHBDd2cRyrDrHRrONVAbUhv36B/ZNogaVRd3Aq2uF1TSpzw==
   dependencies:
     "@babel/runtime" "^7.3.4"
-    "@polkadot/schnorrkel-js" "^0.1.2-3"
-    "@polkadot/util" "^0.37.1"
+    "@polkadot/schnorrkel-js" "^0.2.0-12"
+    "@polkadot/util" "^0.38.0-beta.4"
     "@types/bip39" "^2.4.2"
     "@types/pbkdf2" "^3.0.0"
     "@types/secp256k1" "^3.5.0"
@@ -1470,10 +1470,10 @@
     tweetnacl "^1.0.1"
     xxhashjs "^0.2.2"
 
-"@polkadot/util@^0.37.1":
-  version "0.37.1"
-  resolved "https://registry.yarnpkg.com/@polkadot/util/-/util-0.37.1.tgz#a2f422dd9a25594ddc1d301d351588b7211a9e04"
-  integrity sha512-y6Y3I6t7Xl8ZEc5WQMZES9HQsd4URATCNqcwErLGBCKIH550QXA8lm4ZthSeiMBZ9ga6RFasIMi/ae+AfPUZhA==
+"@polkadot/util@^0.38.0-beta.4":
+  version "0.38.0-beta.4"
+  resolved "https://registry.yarnpkg.com/@polkadot/util/-/util-0.38.0-beta.4.tgz#ae791b53feed18240f1335db47de1ef05ba4be15"
+  integrity sha512-Aq1Ul1JEQDdZSUhQPztbWrZHqFGkWMMK3bg47xtoxrWdtqYhS52a89i+LANSNqli65Z2KhVSTsBakj/tCMBxNQ==
   dependencies:
     "@babel/runtime" "^7.3.4"
     "@types/bn.js" "^4.11.4"