diff --git a/packages/api-server/src/methods/modules/eth.ts b/packages/api-server/src/methods/modules/eth.ts
index 2c12e6ad..e04acaca 100644
--- a/packages/api-server/src/methods/modules/eth.ts
+++ b/packages/api-server/src/methods/modules/eth.ts
@@ -131,7 +131,7 @@ export class Eth {
     ]);
     this.getStorageAt = middleware(this.getStorageAt.bind(this), 3, [
       validators.address,
-      validators.storageKey,
+      validators.hexNumber,
       validators.blockParameter,
     ]);
     this.getTransactionCount = middleware(
diff --git a/packages/api-server/src/methods/validator.ts b/packages/api-server/src/methods/validator.ts
index 0b8c9eea..dab15194 100644
--- a/packages/api-server/src/methods/validator.ts
+++ b/packages/api-server/src/methods/validator.ts
@@ -76,10 +76,6 @@ export const validators = {
     return verifyHexNumber(params[index], index);
   },
 
-  storageKey(params: any[], index: number) {
-    return verifyStorageKey(params[index], index);
-  },
-
   /**
    * Hex number | "latest" | "earliest" | "pending"
    * @param params
@@ -427,17 +423,6 @@ export function verifyEstimateGasCallObject(
   return undefined;
 }
 
-export function verifyStorageKey(
-  key: string,
-  index: number
-): InvalidParamsError | undefined {
-  const err = verifyHexString(key, index);
-  if (err) {
-    return err.padContext("storageKey");
-  }
-  return undefined;
-}
-
 export function verifyFilterTopicString(
   topic: any,
   index: number