diff --git a/package-lock.json b/package-lock.json
index 7286bf1..01c14fe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.21.0-rc10",
+  "version": "0.21.0-rc11",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@orionprotocol/sdk",
-      "version": "0.21.0-rc10",
+      "version": "0.21.0-rc11",
       "hasInstallScript": true,
       "license": "ISC",
       "dependencies": {
diff --git a/package.json b/package.json
index 23bbc47..fad4364 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.21.0-rc10",
+  "version": "0.21.0-rc11",
   "description": "Orion Protocol SDK",
   "main": "./lib/index.cjs",
   "module": "./lib/index.js",
diff --git a/src/constants/lockOrderTypes.ts b/src/constants/lockOrderTypes.ts
index 6302bfa..bc790e7 100644
--- a/src/constants/lockOrderTypes.ts
+++ b/src/constants/lockOrderTypes.ts
@@ -6,5 +6,6 @@ export const LOCK_ORDER_TYPES = {
     { name: 'asset', type: 'string' },
     { name: 'amount', type: 'uint64' },
     { name: 'targetChainId', type: 'uint64' },
+    { name: 'secretHash', type: 'bytes32' },
   ],
 };
diff --git a/src/crypt/signLockOrder.ts b/src/crypt/signLockOrder.ts
index 3adb81e..095c6b2 100644
--- a/src/crypt/signLockOrder.ts
+++ b/src/crypt/signLockOrder.ts
@@ -44,6 +44,7 @@ export const signLockOrder = async ({
       BigNumber.ROUND_FLOOR,
     )),
     targetChainId,
+    secretHash
   };
 
   const signature = await signer.signTypedData(
diff --git a/src/crypt/signOrder.ts b/src/crypt/signOrder.ts
index 89d0f63..bf25618 100644
--- a/src/crypt/signOrder.ts
+++ b/src/crypt/signOrder.ts
@@ -69,11 +69,11 @@ export const signOrder = async ({
     )),
     nonce,
     expiration,
-    // ...(isCrossChain
-    //   ? {
-    //     targetChainId
-    //   }
-    //   : {}),
+    ...(isCrossChain
+      ? {
+        targetChainId
+      }
+      : {}),
     buySide: side === 'BUY' ? 1 : 0,
   };
 
diff --git a/src/types.ts b/src/types.ts
index df65326..fd9d0b4 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -62,6 +62,7 @@ export type LockOrder = {
   asset: string // address(?)
   amount: number // uint64
   targetChainId: SupportedChainId // uint64
+  secretHash: string // bytes32
 }
 
 type SignedOrderAdditionalProps = {