diff --git a/chaincfg/genesis.go b/chaincfg/genesis.go
index eaed111bc..a423ab6b3 100644
--- a/chaincfg/genesis.go
+++ b/chaincfg/genesis.go
@@ -120,10 +120,10 @@ var regTestGenesisBlock = wire.MsgBlock{
 // testNet3GenesisHash is the hash of the first block in the block chain for the
 // test network (version 3).
 var testNet3GenesisHash = chainhash.Hash([chainhash.HashSize]byte{ // Make go vet happy.
-	0x43, 0x49, 0x7f, 0xd7, 0xf8, 0x26, 0x95, 0x71,
-	0x08, 0xf4, 0xa3, 0x0f, 0xd9, 0xce, 0xc3, 0xae,
-	0xba, 0x79, 0x97, 0x20, 0x84, 0xe9, 0x0e, 0xad,
-	0x01, 0xea, 0x33, 0x09, 0x00, 0x00, 0x00, 0x00,
+	0x91, 0x1c, 0xe0, 0x47, 0x77, 0xad, 0x5e, 0xc5,
+	0x60, 0x10, 0x21, 0x32, 0x51, 0x1b, 0x39, 0x06,
+	0x24, 0xb3, 0xbf, 0x08, 0x8e, 0x04, 0x8c, 0xd3,
+	0x80, 0xb4, 0x83, 0x83, 0xed, 0x00, 0x00, 0x00,
 })
 
 // testNet3GenesisMerkleRoot is the hash of the first transaction in the genesis
@@ -139,9 +139,9 @@ var testNet3GenesisBlock = wire.MsgBlock{
 		NumPrevBlocks: 0,
 		PrevBlocks:    []chainhash.Hash{},        // 0000000000000000000000000000000000000000000000000000000000000000
 		MerkleRoot:    testNet3GenesisMerkleRoot, // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
-		Timestamp:     time.Unix(1296688602, 0),  // 2011-02-02 23:16:42 +0000 UTC
-		Bits:          0x1d00ffff,                // 486604799 [00000000ffff0000000000000000000000000000000000000000000000000000]
-		Nonce:         0x18aea41a,                // 414098458
+		Timestamp:     time.Unix(0x5b28c706, 0),  // 2018-06-19 09:04:06 +0000 UTC
+		Bits:          0x1e00ffff,                // 503382015 [000000ffff000000000000000000000000000000000000000000000000000000]
+		Nonce:         0x802f1b3b,                // 2150570811
 	},
 	Transactions: []*wire.MsgTx{&genesisCoinbaseTx},
 }
diff --git a/chaincfg/genesis_test.go b/chaincfg/genesis_test.go
index e52664174..4a510ab1c 100644
--- a/chaincfg/genesis_test.go
+++ b/chaincfg/genesis_test.go
@@ -195,42 +195,38 @@ var regTestGenesisBlockBytes = []byte{
 // testNet3GenesisBlockBytes are the wire encoded bytes for the genesis block of
 // the test network (version 3) as of protocol version 60002.
 var testNet3GenesisBlockBytes = []byte{
-	0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
+	0x01, 0x00, 0x00, 0x00, 0x00, 0x3b, 0xa3, 0xed, /* |.....;..| */
+	0xfd, 0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, /* |.z{..z.,| */
+	0x3e, 0x67, 0x76, 0x8f, 0x61, 0x7f, 0xc8, 0x1b, /* |>gv.a...| */
+	0xc3, 0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, /* |...Q2:..| */
+	0xaa, 0x4b, 0x1e, 0x5e, 0x4a, 0x06, 0xc7, 0x28, /* |.K.^J..(| */
+	0x5b, 0xff, 0xff, 0x00, 0x1e, 0x3b, 0x1b, 0x2f, /* |[....;./| */
+	0x80, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x3b, 0xa3, 0xed, 0xfd, /* |....;...| */
-	0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, 0x3e, /* |z{..z.,>| */
-	0x67, 0x76, 0x8f, 0x61, 0x7f, 0xc8, 0x1b, 0xc3, /* |gv.a....| */
-	0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, 0xaa, /* |..Q2:...| */
-	0x4b, 0x1e, 0x5e, 0x4a, 0xda, 0xe5, 0x49, 0x4d, /* |K.^J)._I| */
-	0xff, 0xff, 0x00, 0x1d, 0x1a, 0xa4, 0xae, 0x18, /* |......+|| */
-	0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, /* |........| */
-	0xff, 0xff, 0x4d, 0x04, 0xff, 0xff, 0x00, 0x1d, /* |..M.....| */
-	0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, 0x54, /* |..EThe T| */
-	0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, 0x2f, /* |imes 03/| */
-	0x4a, 0x61, 0x6e, 0x2f, 0x32, 0x30, 0x30, 0x39, /* |Jan/2009| */
-	0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, 0x6c, /* | Chancel| */
-	0x6c, 0x6f, 0x72, 0x20, 0x6f, 0x6e, 0x20, 0x62, /* |lor on b| */
-	0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66, 0x20, /* |rink of | */
-	0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, 0x62, /* |second b| */
-	0x61, 0x69, 0x6c, 0x6f, 0x75, 0x74, 0x20, 0x66, /* |ailout f| */
-	0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, 0x73, /* |or banks| */
-	0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0xf2, 0x05, /* |........| */
-	0x2a, 0x01, 0x00, 0x00, 0x00, 0x43, 0x41, 0x04, /* |*....CA.| */
-	0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, 0x27, /* |g....UH'| */
-	0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7, 0x10, /* |.g..q0..| */
-	0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, 0xa6, /* |\..(.9..| */
-	0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, 0xb6, /* |yb...a..| */
-	0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, 0xc4, /* |I..?L.8.| */
-	0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, /* |.U......| */
-	0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, /* |\8M....W| */
-	0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, 0x5f, /* |.Lp+k.._|*/
-	0xac, 0x00, 0x00, 0x00, 0x00,                   /* |.....|    */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, /* |........| */
+	0xff, 0xff, 0xff, 0x4d, 0x04, 0xff, 0xff, 0x00, /* |...M....| */
+	0x1d, 0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, /* |...EThe | */
+	0x54, 0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, /* |Times 03| */
+	0x2f, 0x4a, 0x61, 0x6e, 0x2f, 0x32, 0x30, 0x30, /* |/Jan/200| */
+	0x39, 0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, /* |9 Chance| */
+	0x6c, 0x6c, 0x6f, 0x72, 0x20, 0x6f, 0x6e, 0x20, /* |llor on | */
+	0x62, 0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66, /* |brink of| */
+	0x20, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, /* | second | */
+	0x62, 0x61, 0x69, 0x6c, 0x6f, 0x75, 0x74, 0x20, /* |bailout | */
+	0x66, 0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, /* |for bank| */
+	0x73, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0xf2, /* |s.......| */
+	0x05, 0x2a, 0x01, 0x00, 0x00, 0x00, 0x43, 0x41, /* |.*....CA| */
+	0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, /* |.g....UH| */
+	0x27, 0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7, /* |'.g..q0.| */
+	0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, /* |.\..(.9.| */
+	0xa6, 0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, /* |.yb...a.| */
+	0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, /* |.I..?L.8| */
+	0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, /* |..U.....| */
+	0xde, 0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, /* |.\8M....| */
+	0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, /* |W.Lp+k..| */
+	0x5f, 0xac, 0x00, 0x00, 0x00, 0x00,             /* |_.....| */
 }
 
 // simNetGenesisBlockBytes are the wire encoded bytes for the genesis block of