diff --git a/src/types.ts b/src/types.ts
index 546cd4bd..f6f71a58 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,5 +1,5 @@
 import type { Subtract } from "ts-arithmetic";
-import * as formats from "./coins.js";
+import type * as formats from "./coins.js";
 import type {
   coinNameToTypeMap,
   evmCoinNameToTypeMap,