diff --git a/lerna.json b/lerna.json
index 972276cf39..63035eeef1 100644
--- a/lerna.json
+++ b/lerna.json
@@ -9,5 +9,5 @@
   "packages": [
     "packages/*"
   ],
-  "version": "1.0.0-beta.11"
+  "version": "1.0.0-beta.12"
 }
diff --git a/package.json b/package.json
index 2036e113c0..188acee603 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.0.0-beta.11",
+  "version": "1.0.0-beta.12",
   "private": true,
   "engines": {
     "yarn": "^1.10.1"
diff --git a/packages/api-contract/package.json b/packages/api-contract/package.json
index cd28e00b7e..5581f8521a 100644
--- a/packages/api-contract/package.json
+++ b/packages/api-contract/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-contract",
-  "version": "1.0.0-beta.11",
+  "version": "1.0.0-beta.12",
   "description": "Interfaces for interacting with contracts and contract ABIs",
   "main": "index.js",
   "keywords": [
@@ -27,6 +27,6 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/api-contract#readme",
   "dependencies": {
     "@babel/runtime": "^7.7.7",
-    "@polkadot/types": "^1.0.0-beta.11"
+    "@polkadot/types": "^1.0.0-beta.12"
   }
 }
diff --git a/packages/api-derive/package.json b/packages/api-derive/package.json
index 253580e03f..2425a4d7fc 100644
--- a/packages/api-derive/package.json
+++ b/packages/api-derive/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-derive",
-  "version": "1.0.0-beta.11",
+  "version": "1.0.0-beta.12",
   "description": "Common functions used across Polkadot, derived from RPC calls and storage queries.",
   "main": "index.js",
   "keywords": [
@@ -28,8 +28,8 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/api-derive#readme",
   "dependencies": {
     "@babel/runtime": "^7.7.7",
-    "@polkadot/api": "^1.0.0-beta.11",
-    "@polkadot/types": "^1.0.0-beta.11"
+    "@polkadot/api": "^1.0.0-beta.12",
+    "@polkadot/types": "^1.0.0-beta.12"
   },
   "devDependencies": {
     "@polkadot/keyring": "^2.0.0-beta.4"
diff --git a/packages/api/package.json b/packages/api/package.json
index 847ada04b2..dfe0f00ae4 100644
--- a/packages/api/package.json
+++ b/packages/api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api",
-  "version": "1.0.0-beta.11",
+  "version": "1.0.0-beta.12",
   "description": "Promise and RxJS wrappers around the Polkadot JS RPC",
   "main": "index.js",
   "keywords": [
@@ -27,12 +27,12 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/api#readme",
   "dependencies": {
     "@babel/runtime": "^7.7.7",
-    "@polkadot/api-derive": "^1.0.0-beta.11",
+    "@polkadot/api-derive": "^1.0.0-beta.12",
     "@polkadot/keyring": "^2.0.0-beta.4",
-    "@polkadot/metadata": "^1.0.0-beta.11",
-    "@polkadot/rpc-core": "^1.0.0-beta.11",
-    "@polkadot/rpc-provider": "^1.0.0-beta.11",
-    "@polkadot/types": "^1.0.0-beta.11",
+    "@polkadot/metadata": "^1.0.0-beta.12",
+    "@polkadot/rpc-core": "^1.0.0-beta.12",
+    "@polkadot/rpc-provider": "^1.0.0-beta.12",
+    "@polkadot/types": "^1.0.0-beta.12",
     "@polkadot/util-crypto": "^2.0.0-beta.4"
   },
   "devDependencies": {
diff --git a/packages/metadata/package.json b/packages/metadata/package.json
index f66d16ee30..50dd012769 100644
--- a/packages/metadata/package.json
+++ b/packages/metadata/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/metadata",
-  "version": "1.0.0-beta.11",
+  "version": "1.0.0-beta.12",
   "description": "Helpers to extract information from runtime metadata",
   "main": "index.js",
   "publishConfig": {
@@ -27,7 +27,7 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/type-metadata#readme",
   "dependencies": {
     "@babel/runtime": "^7.7.7",
-    "@polkadot/types": "^1.0.0-beta.11",
+    "@polkadot/types": "^1.0.0-beta.12",
     "@polkadot/util": "^2.0.0-beta.4",
     "@polkadot/util-crypto": "^2.0.0-beta.4"
   },
diff --git a/packages/rpc-core/package.json b/packages/rpc-core/package.json
index 88386b00bd..040e720825 100644
--- a/packages/rpc-core/package.json
+++ b/packages/rpc-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/rpc-core",
-  "version": "1.0.0-beta.11",
+  "version": "1.0.0-beta.12",
   "description": "A JavaScript wrapper for the Polkadot JsonRPC interface",
   "main": "index.js",
   "keywords": [
@@ -27,9 +27,9 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/rpc-core#readme",
   "dependencies": {
     "@babel/runtime": "^7.7.7",
-    "@polkadot/jsonrpc": "^1.0.0-beta.11",
-    "@polkadot/rpc-provider": "^1.0.0-beta.11",
-    "@polkadot/types": "^1.0.0-beta.11",
+    "@polkadot/jsonrpc": "^1.0.0-beta.12",
+    "@polkadot/rpc-provider": "^1.0.0-beta.12",
+    "@polkadot/types": "^1.0.0-beta.12",
     "@polkadot/util": "^2.0.0-beta.4",
     "rxjs": "^6.5.4"
   }
diff --git a/packages/rpc-provider/package.json b/packages/rpc-provider/package.json
index d010ed40bb..487adef295 100644
--- a/packages/rpc-provider/package.json
+++ b/packages/rpc-provider/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/rpc-provider",
-  "version": "1.0.0-beta.11",
+  "version": "1.0.0-beta.12",
   "description": "Transport providers for the API",
   "main": "index.js",
   "keywords": [
@@ -27,7 +27,7 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/rpc-provider#readme",
   "dependencies": {
     "@babel/runtime": "^7.7.7",
-    "@polkadot/metadata": "^1.0.0-beta.11",
+    "@polkadot/metadata": "^1.0.0-beta.12",
     "@polkadot/util": "^2.0.0-beta.4",
     "@polkadot/util-crypto": "^2.0.0-beta.4",
     "eventemitter3": "^4.0.0",
diff --git a/packages/type-jsonrpc/package.json b/packages/type-jsonrpc/package.json
index 7057ee582a..4208bcc180 100644
--- a/packages/type-jsonrpc/package.json
+++ b/packages/type-jsonrpc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/jsonrpc",
-  "version": "1.0.0-beta.11",
+  "version": "1.0.0-beta.12",
   "description": "Method definitions for the Polkadot RPC layer",
   "main": "index.js",
   "publishConfig": {
diff --git a/packages/types/package.json b/packages/types/package.json
index 9a998cf4b8..e5857309f1 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/types",
-  "version": "1.0.0-beta.11",
+  "version": "1.0.0-beta.12",
   "description": "Implementation of the Parity codec",
   "main": "index.js",
   "keywords": [
@@ -27,7 +27,7 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/types#readme",
   "dependencies": {
     "@babel/runtime": "^7.7.7",
-    "@polkadot/metadata": "^1.0.0-beta.11",
+    "@polkadot/metadata": "^1.0.0-beta.12",
     "@polkadot/util": "^2.0.0-beta.4",
     "@polkadot/util-crypto": "^2.0.0-beta.4",
     "@types/memoizee": "^0.4.3",