diff --git a/src/concrete/OrderBook.sol b/src/concrete/OrderBook.sol
index ed0f4aab3..10cb948bb 100644
--- a/src/concrete/OrderBook.sol
+++ b/src/concrete/OrderBook.sol
@@ -123,7 +123,7 @@ uint256 constant CONTEXT_VAULT_IO_BALANCE_DIFF = 4;
 uint256 constant CONTEXT_VAULT_IO_ROWS = 5;
 
 /// @dev Hash of the caller contract metadata for construction.
-bytes32 constant CALLER_META_HASH = bytes32(0xf0c79e4006636a71899066ac45a478da4eafaa3117769678b6f18d96138bc156);
+bytes32 constant CALLER_META_HASH = bytes32(0x71fe2f4f68f17dfe6ae7aba2bbd6cbfe5a2a48a93ebbc8b1f1900887b978eeee);
 
 /// All information resulting from an order calculation that allows for vault IO
 /// to be calculated and applied, then the handle IO entrypoint to be dispatched.