diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index 50a7e192..3190d005 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -720,7 +720,7 @@ regtest.seeds = [
 
 regtest.magic = 0xdab5bffa;
 
-regtest.port = 48444;
+regtest.port = 18444;
 
 regtest.checkpointMap = {};
 regtest.lastCheckpoint = 0;
@@ -838,25 +838,25 @@ regtest.deploys = [
 ];
 
 regtest.keyPrefix = {
-  privkey: 0x5a,
-  xpubkey: 0xeab4fa05,
-  xprivkey: 0xeab404c7,
-  xpubkey58: 'rpub',
-  xprivkey58: 'rprv',
+  privkey: 0xef,
+  xpubkey: 0x043587cf,
+  xprivkey: 0x04358394,
+  xpubkey58: 'tpub',
+  xprivkey58: 'tprv',
   coinType: 1
 };
 
 regtest.addressPrefix = {
-  pubkeyhash: 0x3c,
-  scripthash: 0x26,
-  witnesspubkeyhash: 0x7a,
-  witnessscripthash: 0x14,
-  bech32: 'rb'
+  pubkeyhash: 0x6f,
+  scripthash: 0xc4,
+  witnesspubkeyhash: 0x03,
+  witnessscripthash: 0x28,
+  bech32: 'bcrt'
 };
 
 regtest.requireStandard = false;
 
-regtest.rpcPort = 48332;
+regtest.rpcPort = 18443;
 
 regtest.walletPort = 48334;