diff --git a/src/rpc/solana.ts b/src/rpc/solana.ts
index b438cb6..5cd5996 100644
--- a/src/rpc/solana.ts
+++ b/src/rpc/solana.ts
@@ -1,6 +1,6 @@
 import { proxyRpcMethod } from "./common.js";
 import { RpcMethodList } from "./index.js";
-import * as chainNetworks from "../networks.json";
+import * as chainNetworks from "../networks.json" assert { type: "json" };
 
 export default {
   getAccountInfo: proxyRpcMethod("getAccountInfo", [
diff --git a/src/util.ts b/src/util.ts
index 992b998..a8b832f 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -1,4 +1,4 @@
-import * as chainNetworks from "./networks.json";
+import * as chainNetworks from "./networks.json" assert { type: "json" };
 
 type networks = { [net: string]: string };