diff --git a/lerna.json b/lerna.json
index bf5a662a48..1592b1f936 100644
--- a/lerna.json
+++ b/lerna.json
@@ -10,5 +10,5 @@
   "packages": [
     "packages/*"
   ],
-  "version": "0.12.2"
+  "version": "0.12.3"
 }
diff --git a/package.json b/package.json
index 4aed0e31fc..aacb091dff 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "version": "0.12.2",
+  "version": "0.12.3",
   "private": true,
   "workspaces": [
     "packages/*"
diff --git a/packages/api-format/package.json b/packages/api-format/package.json
index 31783a3726..9f96ba2b00 100644
--- a/packages/api-format/package.json
+++ b/packages/api-format/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-format",
-  "version": "0.12.2",
+  "version": "0.12.3",
   "description": "Input/Output formatters for JsonRPC exchange",
   "main": "index.js",
   "keywords": [
diff --git a/packages/api-provider/package.json b/packages/api-provider/package.json
index 11bf42366a..e7443a1a3b 100644
--- a/packages/api-provider/package.json
+++ b/packages/api-provider/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-provider",
-  "version": "0.12.2",
+  "version": "0.12.3",
   "description": "Transport providers for the API",
   "main": "index.js",
   "keywords": [
diff --git a/packages/api-rx/package.json b/packages/api-rx/package.json
index beff19bc9a..a4fae9bce7 100644
--- a/packages/api-rx/package.json
+++ b/packages/api-rx/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-rx",
-  "version": "0.12.2",
+  "version": "0.12.3",
   "description": "An RxJs wrapper around the Polkadot JS API",
   "main": "index.js",
   "keywords": [
@@ -31,8 +31,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.0.0-beta.47",
-    "@polkadot/api": "^0.12.2",
-    "@polkadot/api-provider": "^0.12.2",
+    "@polkadot/api": "^0.12.3",
+    "@polkadot/api-provider": "^0.12.3",
     "rxjs": "^5.5.10"
   }
 }
diff --git a/packages/api/package.json b/packages/api/package.json
index 7760de5894..3fa2c5e561 100644
--- a/packages/api/package.json
+++ b/packages/api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api",
-  "version": "0.12.2",
+  "version": "0.12.3",
   "description": "A JavaScript wrapper for the Polkadot JsonRPC interface",
   "main": "index.js",
   "keywords": [
@@ -31,8 +31,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.0.0-beta.47",
-    "@polkadot/api-format": "^0.12.2",
-    "@polkadot/api-provider": "^0.12.2",
+    "@polkadot/api-format": "^0.12.3",
+    "@polkadot/api-provider": "^0.12.3",
     "@polkadot/jsonrpc": "^0.15.7",
     "@polkadot/params": "^0.15.7",
     "@polkadot/util": "^0.21.2"