diff --git a/bitcoin/src/blockdata/constants.rs b/bitcoin/src/blockdata/constants.rs
index d716a88f..13b2bf5d 100644
--- a/bitcoin/src/blockdata/constants.rs
+++ b/bitcoin/src/blockdata/constants.rs
@@ -54,9 +54,9 @@ pub const PUBKEY_ADDRESS_PREFIX_TEST: u8 = 15; // 0xf (defichain testnet, devnet
 pub const SCRIPT_ADDRESS_PREFIX_TEST: u8 = 128; // 0x80 (defichain testnet, devnet changi)
 
 /// Regtest pubkey address prefix.
-pub const PUBKEY_ADDRESS_PREFIX_REGTEST: u8 = 111; // 0x6f (defichain regtest)
+pub const PUBKEY_ADDRESS_PREFIX_REGTEST: u8 = 15; // 0x6f (defichain regtest)
 /// Regtest script address prefix.
-pub const SCRIPT_ADDRESS_PREFIX_REGTEST: u8 = 196; // 0xc4 (defichain regtest)
+pub const SCRIPT_ADDRESS_PREFIX_REGTEST: u8 = 128; // 0xc4 (defichain regtest)
 
 /// The maximum allowed script size.
 pub const MAX_SCRIPT_ELEMENT_SIZE: usize = 520;