diff --git a/.circleci/config.yml b/.circleci/config.yml
index 142e57b..d7e27b7 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -4,7 +4,7 @@ jobs:
     docker:
       - image: circleci/node:10.13.0
       # Run Plug node
-      - image: plugnet/plugblockchain:1.0.0-rc2
+      - image: plugnet/plugblockchain:1.0.0-rc3.1
         entrypoint: /usr/local/bin/plug
         command:
           - --dev
diff --git a/README.md b/README.md
index ad23e76..0249bb2 100644
--- a/README.md
+++ b/README.md
@@ -30,3 +30,10 @@ async function main() {
 
 }
 ```
+
+## Build
+To build the package for distribution run:
+```
+tsc
+```
+
diff --git a/dist/index.d.ts b/dist/index.d.ts
index d388f66..f70f7eb 100644
--- a/dist/index.d.ts
+++ b/dist/index.d.ts
@@ -4,5 +4,6 @@ declare const PlugRuntimeTypes: {
     Doughnut: typeof Doughnut;
     ExtrinsicV4: typeof PlugExtrinsicV1;
     RewardBalance: string;
+    Address: string;
 };
 export default PlugRuntimeTypes;
diff --git a/dist/index.js b/dist/index.js
index cdbbf10..cd386c4 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -23,5 +23,7 @@ const PlugRuntimeTypes = {
     ExtrinsicV4: Extrinsic_1.default,
     // The staking reward currency type
     RewardBalance: 'Balance',
+    // The chain address type is the AccountId type
+    Address: 'AccountId',
 };
 exports.default = PlugRuntimeTypes;
diff --git a/types/index.ts b/types/index.ts
index edac28f..ee3841d 100644
--- a/types/index.ts
+++ b/types/index.ts
@@ -23,6 +23,8 @@ const PlugRuntimeTypes = {
     ExtrinsicV4: PlugExtrinsicV1,
     // The staking reward currency type
     RewardBalance: 'Balance',
+    // The chain address type is the AccountId type
+    Address: 'AccountId',
 };
 
 export default PlugRuntimeTypes;