diff --git a/packages/bcp/src/cosmwasmconnection.ts b/packages/bcp/src/cosmwasmconnection.ts
index ffe4540a..5b37b935 100644
--- a/packages/bcp/src/cosmwasmconnection.ts
+++ b/packages/bcp/src/cosmwasmconnection.ts
@@ -132,7 +132,7 @@ export class CosmWasmConnection implements BlockchainConnection {
   public async height(): Promise<number> {
     // tslint:disable-next-line: deprecation
     const { block } = await this.restClient.blocksLatest();
-    return block.header.height;
+    return parseInt(block.header.height, 10);
   }
 
   public async getToken(searchTicker: TokenTicker): Promise<Token | undefined> {
diff --git a/packages/sdk/src/restclient.ts b/packages/sdk/src/restclient.ts
index 7c09e9e4..61b8bb24 100644
--- a/packages/sdk/src/restclient.ts
+++ b/packages/sdk/src/restclient.ts
@@ -34,7 +34,7 @@ export interface BlockMeta {
 }
 
 export interface BlockHeader {
-  readonly height: number;
+  readonly height: string;
   readonly chain_id: string;
   // TODO: add all of those
   // header: {
diff --git a/packages/sdk/types/restclient.d.ts b/packages/sdk/types/restclient.d.ts
index 28af8a9d..a67bc175 100644
--- a/packages/sdk/types/restclient.d.ts
+++ b/packages/sdk/types/restclient.d.ts
@@ -16,7 +16,7 @@ export interface BlockMeta {
   };
 }
 export interface BlockHeader {
-  readonly height: number;
+  readonly height: string;
   readonly chain_id: string;
 }
 export interface Block {