diff --git a/packages/core/src/types/cosmos.ts b/packages/core/src/types/cosmos.ts
index 0a3a5f70a..8b9355792 100644
--- a/packages/core/src/types/cosmos.ts
+++ b/packages/core/src/types/cosmos.ts
@@ -13,7 +13,7 @@ export interface OfflineDirectSigner {
 }
 
 export interface CosmosSigningOptions {
-  cosmosSignerConfig: CosmosSignerConfig
+  cosmosSignerConfig: Partial<CosmosSignerConfig>
 }
 
 export interface Pubkey {