diff --git a/rpcclient/policy/client.go b/rpcclient/policy/client.go
index 6a0d551..cffad49 100644
--- a/rpcclient/policy/client.go
+++ b/rpcclient/policy/client.go
@@ -196,3 +196,25 @@ func (c *Contract) SetAdminTransaction(addr util.Uint160) (*transaction.Transact
 func (c *Contract) SetAdminUnsigned(addr util.Uint160) (*transaction.Transaction, error) {
 	return c.actor.MakeUnsignedCall(c.hash, "setAdmin", nil, addr)
 }
+
+// Update creates a transaction invoking `update` method of the contract.
+// This transaction is signed and immediately sent to the network.
+// The values returned are its hash, ValidUntilBlock value and error if any.
+func (c *Contract) Update(script []byte, manifest []byte, data any) (util.Uint256, uint32, error) {
+	return c.actor.SendCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateTransaction creates a transaction invoking `update` method of the contract.
+// This transaction is signed, but not sent to the network, instead it's
+// returned to the caller.
+func (c *Contract) UpdateTransaction(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeCall(c.hash, "update", script, manifest, data)
+}
+
+// UpdateUnsigned creates a transaction invoking `update` method of the contract.
+// This transaction is not signed, it's simply returned to the caller.
+// Any fields of it that do not affect fees can be changed (ValidUntilBlock,
+// Nonce), fee values (NetworkFee, SystemFee) can be increased as well.
+func (c *Contract) UpdateUnsigned(script []byte, manifest []byte, data any) (*transaction.Transaction, error) {
+	return c.actor.MakeUnsignedCall(c.hash, "update", nil, script, manifest, data)
+}