diff --git a/types/chainRegistry.ts b/types/chainRegistry.ts
index f95acb4..14a6ef4 100644
--- a/types/chainRegistry.ts
+++ b/types/chainRegistry.ts
@@ -15,6 +15,19 @@ export interface GithubChainRegistryItem {
   };
 }
 
+export interface GithubTreeItem {
+  readonly path: string;
+  readonly mode: string;
+  readonly type: string;
+  readonly sha: string;
+  readonly size: number;
+  readonly url: string;
+}
+
+export interface GithubTreesResponse {
+  readonly tree: readonly GithubTreeItem[];
+}
+
 export interface RegistryChainApisRpc {
   readonly address: string;
   readonly provider: string;
@@ -43,12 +56,17 @@ export interface RegistryChainFees {
 }
 
 export interface RegistryChain {
-  readonly apis: RegistryChainApis;
+  readonly apis?: RegistryChainApis;
   readonly bech32_prefix: string;
   readonly chain_id: string;
+  readonly chain_name: string;
   readonly explorers: readonly RegistryChainExplorer[];
-  readonly fees: RegistryChainFees;
+  readonly fees?: RegistryChainFees;
   readonly pretty_name: string;
+  readonly logo_URIs?: {
+    readonly png?: string;
+    readonly svg?: string;
+  };
 }
 
 /**