diff --git a/.changeset/dirty-crabs-pretend.md b/.changeset/dirty-crabs-pretend.md
new file mode 100644
index 0000000000..ef8135c6fe
--- /dev/null
+++ b/.changeset/dirty-crabs-pretend.md
@@ -0,0 +1,5 @@
+---
+'@coinbase/onchainkit': patch
+---
+
+- **fix**: for `FrameTransactionEthSendParams.data` replaced `Address` with `Hex`. By @zizzamia #224
diff --git a/site/docs/pages/frame/types.mdx b/site/docs/pages/frame/types.mdx
index 470b5285c3..addb95ad15 100644
--- a/site/docs/pages/frame/types.mdx
+++ b/site/docs/pages/frame/types.mdx
@@ -150,7 +150,7 @@ type FrameTransactionResponse = {
 ```ts
 type FrameTransactionEthSendParams = {
   abi: Abi; // The contract ABI for the contract to call.
-  data?: Address; // The data to send with the transaction.
+  data?: Hex; // The data to send with the transaction.
   to: Address; // The address of the contract to call.
   value: bigint; // The amount of Ether to send with the transaction.
 };
diff --git a/src/frame/types.ts b/src/frame/types.ts
index 380e4a2f7d..e980eb5971 100644
--- a/src/frame/types.ts
+++ b/src/frame/types.ts
@@ -1,4 +1,4 @@
-import type { Abi, Address } from 'viem';
+import type { Abi, Address, Hex } from 'viem';
 import { NeynarFrameValidationInternalModel } from '../utils/neynar/frame/types';
 
 /**
@@ -154,7 +154,7 @@ export type FrameTransactionResponse = {
  */
 export type FrameTransactionEthSendParams = {
   abi: Abi; // The contract ABI for the contract to call.
-  data?: Address; // The data to send with the transaction.
+  data?: Hex; // The data to send with the transaction.
   to: Address; // The address of the contract to call.
   value: string; // The amount of Wei to send with the transaction
 };
diff --git a/src/version.ts b/src/version.ts
index ae90c8c79e..9172061ef6 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const version = '0.9.11';
+export const version = '0.9.12';