diff --git a/package.json b/package.json
index 840e197d..5b316f50 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "@imtbl/core-sdk",
+  "name": "@imtbl/core-sdk-1",
   "version": "2.2.0",
   "description": "Immutable Core SDK",
   "main": "dist/index.cjs.js",
diff --git a/src/workflows/workflows.ts b/src/workflows/workflows.ts
index b3fbc670..6c060421 100644
--- a/src/workflows/workflows.ts
+++ b/src/workflows/workflows.ts
@@ -103,7 +103,7 @@ export class Workflows {
   }
 
   private async validateChain(signer: Signer) {
-    const chainID = await signer.getChainId();
+    const chainID = await signer.ChainId;
 
     if (!this.isChainValid(chainID))
       throw new Error(