diff --git a/package.json b/package.json
index cd73f761f4..3e64ce969c 100644
--- a/package.json
+++ b/package.json
@@ -33,5 +33,5 @@
     "@types/jest": "^26.0.15",
     "copyfiles": "^2.4.0"
   },
-  "version": "2.4.2-17"
+  "version": "2.4.2-18"
 }
diff --git a/packages/api-contract/package.json b/packages/api-contract/package.json
index ba305def0e..9d15fad09b 100644
--- a/packages/api-contract/package.json
+++ b/packages/api-contract/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-contract",
-  "version": "2.4.2-17",
+  "version": "2.4.2-18",
   "description": "Interfaces for interacting with contracts and contract ABIs",
   "main": "index.js",
   "keywords": [
@@ -27,9 +27,9 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/api-contract#readme",
   "dependencies": {
     "@babel/runtime": "^7.12.1",
-    "@polkadot/api": "^2.4.2-17",
-    "@polkadot/rpc-core": "^2.4.2-17",
-    "@polkadot/types": "^2.4.2-17",
+    "@polkadot/api": "^2.4.2-18",
+    "@polkadot/rpc-core": "^2.4.2-18",
+    "@polkadot/types": "^2.4.2-18",
     "@polkadot/util": "^3.6.2-12",
     "bn.js": "^5.1.3",
     "rxjs": "^6.6.3"
diff --git a/packages/api-derive/package.json b/packages/api-derive/package.json
index d2f4f7c5d3..100c00f859 100644
--- a/packages/api-derive/package.json
+++ b/packages/api-derive/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-derive",
-  "version": "2.4.2-17",
+  "version": "2.4.2-18",
   "description": "Common functions used across Polkadot, derived from RPC calls and storage queries.",
   "main": "index.js",
   "keywords": [
@@ -28,10 +28,10 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/api-derive#readme",
   "dependencies": {
     "@babel/runtime": "^7.12.1",
-    "@polkadot/api": "^2.4.2-17",
-    "@polkadot/rpc-core": "^2.4.2-17",
-    "@polkadot/rpc-provider": "^2.4.2-17",
-    "@polkadot/types": "^2.4.2-17",
+    "@polkadot/api": "^2.4.2-18",
+    "@polkadot/rpc-core": "^2.4.2-18",
+    "@polkadot/rpc-provider": "^2.4.2-18",
+    "@polkadot/types": "^2.4.2-18",
     "@polkadot/util": "^3.6.2-12",
     "@polkadot/util-crypto": "^3.6.2-12",
     "bn.js": "^5.1.3",
diff --git a/packages/api/package.json b/packages/api/package.json
index 87df4f8b4a..f82f978719 100644
--- a/packages/api/package.json
+++ b/packages/api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api",
-  "version": "2.4.2-17",
+  "version": "2.4.2-18",
   "description": "Promise and RxJS wrappers around the Polkadot JS RPC",
   "main": "index.js",
   "keywords": [
@@ -27,13 +27,13 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/api#readme",
   "dependencies": {
     "@babel/runtime": "^7.12.1",
-    "@polkadot/api-derive": "^2.4.2-17",
+    "@polkadot/api-derive": "^2.4.2-18",
     "@polkadot/keyring": "^3.6.2-12",
-    "@polkadot/metadata": "^2.4.2-17",
-    "@polkadot/rpc-core": "^2.4.2-17",
-    "@polkadot/rpc-provider": "^2.4.2-17",
-    "@polkadot/types": "^2.4.2-17",
-    "@polkadot/types-known": "^2.4.2-17",
+    "@polkadot/metadata": "^2.4.2-18",
+    "@polkadot/rpc-core": "^2.4.2-18",
+    "@polkadot/rpc-provider": "^2.4.2-18",
+    "@polkadot/types": "^2.4.2-18",
+    "@polkadot/types-known": "^2.4.2-18",
     "@polkadot/util": "^3.6.2-12",
     "@polkadot/util-crypto": "^3.6.2-12",
     "bn.js": "^5.1.3",
diff --git a/packages/metadata/package.json b/packages/metadata/package.json
index 41d2d3069e..d96e36a1c8 100644
--- a/packages/metadata/package.json
+++ b/packages/metadata/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/metadata",
-  "version": "2.4.2-17",
+  "version": "2.4.2-18",
   "description": "Helpers to extract information from runtime metadata",
   "main": "index.js",
   "publishConfig": {
@@ -27,8 +27,8 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/type-metadata#readme",
   "dependencies": {
     "@babel/runtime": "^7.12.1",
-    "@polkadot/types": "^2.4.2-17",
-    "@polkadot/types-known": "^2.4.2-17",
+    "@polkadot/types": "^2.4.2-18",
+    "@polkadot/types-known": "^2.4.2-18",
     "@polkadot/util": "^3.6.2-12",
     "@polkadot/util-crypto": "^3.6.2-12",
     "bn.js": "^5.1.3"
diff --git a/packages/rpc-core/package.json b/packages/rpc-core/package.json
index dfc69aa756..4696072a3d 100644
--- a/packages/rpc-core/package.json
+++ b/packages/rpc-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/rpc-core",
-  "version": "2.4.2-17",
+  "version": "2.4.2-18",
   "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": "^7.12.1",
-    "@polkadot/metadata": "^2.4.2-17",
-    "@polkadot/rpc-provider": "^2.4.2-17",
-    "@polkadot/types": "^2.4.2-17",
+    "@polkadot/metadata": "^2.4.2-18",
+    "@polkadot/rpc-provider": "^2.4.2-18",
+    "@polkadot/types": "^2.4.2-18",
     "@polkadot/util": "^3.6.2-12",
     "memoizee": "^0.4.14",
     "rxjs": "^6.6.3"
diff --git a/packages/rpc-provider/package.json b/packages/rpc-provider/package.json
index a9780debaf..03ccbd7825 100644
--- a/packages/rpc-provider/package.json
+++ b/packages/rpc-provider/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/rpc-provider",
-  "version": "2.4.2-17",
+  "version": "2.4.2-18",
   "description": "Transport providers for the API",
   "main": "index.js",
   "keywords": [
@@ -27,8 +27,8 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/rpc-provider#readme",
   "dependencies": {
     "@babel/runtime": "^7.12.1",
-    "@polkadot/metadata": "^2.4.2-17",
-    "@polkadot/types": "^2.4.2-17",
+    "@polkadot/metadata": "^2.4.2-18",
+    "@polkadot/types": "^2.4.2-18",
     "@polkadot/util": "^3.6.2-12",
     "@polkadot/util-crypto": "^3.6.2-12",
     "@polkadot/x-fetch": "^3.6.2-12",
diff --git a/packages/typegen/package.json b/packages/typegen/package.json
index 7064f5da9a..8b8eb677b9 100644
--- a/packages/typegen/package.json
+++ b/packages/typegen/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/typegen",
-  "version": "2.4.2-17",
+  "version": "2.4.2-18",
   "description": "Type generation scripts",
   "main": "index.js",
   "bin": {
@@ -36,10 +36,10 @@
     "@babel/core": "^7.12.3",
     "@babel/register": "^7.12.1",
     "@babel/runtime": "^7.12.1",
-    "@polkadot/api": "^2.4.2-17",
-    "@polkadot/metadata": "^2.4.2-17",
-    "@polkadot/rpc-provider": "^2.4.2-17",
-    "@polkadot/types": "^2.4.2-17",
+    "@polkadot/api": "^2.4.2-18",
+    "@polkadot/metadata": "^2.4.2-18",
+    "@polkadot/rpc-provider": "^2.4.2-18",
+    "@polkadot/types": "^2.4.2-18",
     "@polkadot/util": "^3.6.2-12",
     "handlebars": "^4.7.6",
     "websocket": "^1.0.32",
diff --git a/packages/types-known/package.json b/packages/types-known/package.json
index b3f06ae7bc..0612e3c939 100644
--- a/packages/types-known/package.json
+++ b/packages/types-known/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/types-known",
-  "version": "2.4.2-17",
+  "version": "2.4.2-18",
   "description": "A JavaScript wrapper for the Polkadot JsonRPC interface",
   "main": "index.js",
   "keywords": [
@@ -27,7 +27,7 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/types-known#readme",
   "dependencies": {
     "@babel/runtime": "^7.12.1",
-    "@polkadot/types": "^2.4.2-17",
+    "@polkadot/types": "^2.4.2-18",
     "@polkadot/util": "^3.6.2-12",
     "bn.js": "^5.1.3"
   },
diff --git a/packages/types/package.json b/packages/types/package.json
index 95c99faee0..2842b07e13 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/types",
-  "version": "2.4.2-17",
+  "version": "2.4.2-18",
   "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": "^7.12.1",
-    "@polkadot/metadata": "^2.4.2-17",
+    "@polkadot/metadata": "^2.4.2-18",
     "@polkadot/util": "^3.6.2-12",
     "@polkadot/util-crypto": "^3.6.2-12",
     "@types/bn.js": "^4.11.6",
diff --git a/yarn.lock b/yarn.lock
index 75ebc5ef99..0a754e59a4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1717,25 +1717,25 @@ __metadata:
   resolution: "@polkadot/api-contract@workspace:packages/api-contract"
   dependencies:
     "@babel/runtime": ^7.12.1
-    "@polkadot/api": ^2.4.2-17
-    "@polkadot/rpc-core": ^2.4.2-17
-    "@polkadot/types": ^2.4.2-17
+    "@polkadot/api": ^2.4.2-18
+    "@polkadot/rpc-core": ^2.4.2-18
+    "@polkadot/types": ^2.4.2-18
     "@polkadot/util": ^3.6.2-12
     bn.js: ^5.1.3
     rxjs: ^6.6.3
   languageName: unknown
   linkType: soft
 
-"@polkadot/api-derive@^2.4.2-17, @polkadot/api-derive@workspace:packages/api-derive":
+"@polkadot/api-derive@^2.4.2-18, @polkadot/api-derive@workspace:packages/api-derive":
   version: 0.0.0-use.local
   resolution: "@polkadot/api-derive@workspace:packages/api-derive"
   dependencies:
     "@babel/runtime": ^7.12.1
-    "@polkadot/api": ^2.4.2-17
+    "@polkadot/api": ^2.4.2-18
     "@polkadot/keyring": ^3.6.2-12
-    "@polkadot/rpc-core": ^2.4.2-17
-    "@polkadot/rpc-provider": ^2.4.2-17
-    "@polkadot/types": ^2.4.2-17
+    "@polkadot/rpc-core": ^2.4.2-18
+    "@polkadot/rpc-provider": ^2.4.2-18
+    "@polkadot/types": ^2.4.2-18
     "@polkadot/util": ^3.6.2-12
     "@polkadot/util-crypto": ^3.6.2-12
     bn.js: ^5.1.3
@@ -1744,18 +1744,18 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/api@^2.4.2-17, @polkadot/api@workspace:packages/api":
+"@polkadot/api@^2.4.2-18, @polkadot/api@workspace:packages/api":
   version: 0.0.0-use.local
   resolution: "@polkadot/api@workspace:packages/api"
   dependencies:
     "@babel/runtime": ^7.12.1
-    "@polkadot/api-derive": ^2.4.2-17
+    "@polkadot/api-derive": ^2.4.2-18
     "@polkadot/keyring": ^3.6.2-12
-    "@polkadot/metadata": ^2.4.2-17
-    "@polkadot/rpc-core": ^2.4.2-17
-    "@polkadot/rpc-provider": ^2.4.2-17
-    "@polkadot/types": ^2.4.2-17
-    "@polkadot/types-known": ^2.4.2-17
+    "@polkadot/metadata": ^2.4.2-18
+    "@polkadot/rpc-core": ^2.4.2-18
+    "@polkadot/rpc-provider": ^2.4.2-18
+    "@polkadot/types": ^2.4.2-18
+    "@polkadot/types-known": ^2.4.2-18
     "@polkadot/util": ^3.6.2-12
     "@polkadot/util-crypto": ^3.6.2-12
     bn.js: ^5.1.3
@@ -1868,14 +1868,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/metadata@^2.4.2-17, @polkadot/metadata@workspace:packages/metadata":
+"@polkadot/metadata@^2.4.2-18, @polkadot/metadata@workspace:packages/metadata":
   version: 0.0.0-use.local
   resolution: "@polkadot/metadata@workspace:packages/metadata"
   dependencies:
     "@babel/runtime": ^7.12.1
     "@polkadot/keyring": ^3.6.2-12
-    "@polkadot/types": ^2.4.2-17
-    "@polkadot/types-known": ^2.4.2-17
+    "@polkadot/types": ^2.4.2-18
+    "@polkadot/types-known": ^2.4.2-18
     "@polkadot/util": ^3.6.2-12
     "@polkadot/util-crypto": ^3.6.2-12
     bn.js: ^5.1.3
@@ -1891,29 +1891,29 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/rpc-core@^2.4.2-17, @polkadot/rpc-core@workspace:packages/rpc-core":
+"@polkadot/rpc-core@^2.4.2-18, @polkadot/rpc-core@workspace:packages/rpc-core":
   version: 0.0.0-use.local
   resolution: "@polkadot/rpc-core@workspace:packages/rpc-core"
   dependencies:
     "@babel/runtime": ^7.12.1
     "@polkadot/keyring": ^3.6.2-12
-    "@polkadot/metadata": ^2.4.2-17
-    "@polkadot/rpc-provider": ^2.4.2-17
-    "@polkadot/types": ^2.4.2-17
+    "@polkadot/metadata": ^2.4.2-18
+    "@polkadot/rpc-provider": ^2.4.2-18
+    "@polkadot/types": ^2.4.2-18
     "@polkadot/util": ^3.6.2-12
     memoizee: ^0.4.14
     rxjs: ^6.6.3
   languageName: unknown
   linkType: soft
 
-"@polkadot/rpc-provider@^2.4.2-17, @polkadot/rpc-provider@workspace:packages/rpc-provider":
+"@polkadot/rpc-provider@^2.4.2-18, @polkadot/rpc-provider@workspace:packages/rpc-provider":
   version: 0.0.0-use.local
   resolution: "@polkadot/rpc-provider@workspace:packages/rpc-provider"
   dependencies:
     "@babel/runtime": ^7.12.1
     "@polkadot/keyring": ^3.6.2-12
-    "@polkadot/metadata": ^2.4.2-17
-    "@polkadot/types": ^2.4.2-17
+    "@polkadot/metadata": ^2.4.2-18
+    "@polkadot/types": ^2.4.2-18
     "@polkadot/util": ^3.6.2-12
     "@polkadot/util-crypto": ^3.6.2-12
     "@polkadot/x-fetch": ^3.6.2-12
@@ -1941,10 +1941,10 @@ __metadata:
     "@babel/core": ^7.12.3
     "@babel/register": ^7.12.1
     "@babel/runtime": ^7.12.1
-    "@polkadot/api": ^2.4.2-17
-    "@polkadot/metadata": ^2.4.2-17
-    "@polkadot/rpc-provider": ^2.4.2-17
-    "@polkadot/types": ^2.4.2-17
+    "@polkadot/api": ^2.4.2-18
+    "@polkadot/metadata": ^2.4.2-18
+    "@polkadot/rpc-provider": ^2.4.2-18
+    "@polkadot/types": ^2.4.2-18
     "@polkadot/util": ^3.6.2-12
     "@types/websocket": ^1.0.1
     "@types/yargs": ^15.0.9
@@ -1960,25 +1960,25 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/types-known@^2.4.2-17, @polkadot/types-known@workspace:packages/types-known":
+"@polkadot/types-known@^2.4.2-18, @polkadot/types-known@workspace:packages/types-known":
   version: 0.0.0-use.local
   resolution: "@polkadot/types-known@workspace:packages/types-known"
   dependencies:
     "@babel/runtime": ^7.12.1
-    "@polkadot/types": ^2.4.2-17
+    "@polkadot/types": ^2.4.2-18
     "@polkadot/util": ^3.6.2-12
     "@types/bn.js": ^4.11.6
     bn.js: ^5.1.3
   languageName: unknown
   linkType: soft
 
-"@polkadot/types@^2.4.2-17, @polkadot/types@workspace:packages/types":
+"@polkadot/types@^2.4.2-18, @polkadot/types@workspace:packages/types":
   version: 0.0.0-use.local
   resolution: "@polkadot/types@workspace:packages/types"
   dependencies:
     "@babel/runtime": ^7.12.1
     "@polkadot/keyring": ^3.6.2-12
-    "@polkadot/metadata": ^2.4.2-17
+    "@polkadot/metadata": ^2.4.2-18
     "@polkadot/util": ^3.6.2-12
     "@polkadot/util-crypto": ^3.6.2-12
     "@types/bn.js": ^4.11.6