diff --git a/packages/util/src/provider.ts b/packages/util/src/provider.ts
index 28bc74a766b..e61e6bfad39 100644
--- a/packages/util/src/provider.ts
+++ b/packages/util/src/provider.ts
@@ -1,6 +1,6 @@
 type rpcParams = {
   method: string
-  params: (string | boolean | number)[]
+  params: (string | string[] | boolean | number)[]
 }
 
 /**