diff --git a/core/constants.go b/core/constants.go
index 05a5518..50a1064 100644
--- a/core/constants.go
+++ b/core/constants.go
@@ -168,6 +168,7 @@ var KnownABIJSON = []string{
 	`[{"inputs":[{"name":"prevOwner","type":"address"},{"name":"owner","type":"address"},{"name":"threshold","type":"uint256"}],"name":"removeOwner","type":"function"}]`,
 	`[{"inputs":[{"name":"to","type":"address"},{"name":"value","type":"uint256"},{"name":"data","type":"bytes"},{"name":"operation","type":"uint8"},{"name":"safeTxGas","type":"uint256"},{"name":"baseGas","type":"uint256"},{"name":"gasPrice","type":"uint256"},{"name":"gasToken","type":"address"},{"name":"refundReceiver","type":"address"},{"name":"signatures","type":"bytes"}],"name":"execTransaction","type":"function"}]`,
 	`[{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"},{"internalType":"uint64","name":"_gasLimit","type":"uint64"},{"internalType":"bool","name":"_isCreation","type":"bool"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"depositTransaction","outputs":[],"stateMutability":"payable","type":"function"}]`,
+	`[{"inputs":[{"name":"prevOwner","type":"address"},{"name":"oldOwner","type":"address"},{"name":"newOwner","type":"address"}],"name":"swapOwner","type":"function"}]`,
 	`[{"inputs":[{"components":[{"name":"systemConfigProxy","type":"address"},{"name":"proxyAdmin","type":"address"},{"name":"absolutePrestate","type":"bytes32"}],"name":"_prestateUpdateInputs","type":"tuple[]"}],"name":"updatePrestate","outputs":[],"stateMutability":"nonpayable","type":"function"}]`,
 }