diff --git a/README.md b/README.md
index 7a3722e1..97a25da7 100644
--- a/README.md
+++ b/README.md
@@ -20,8 +20,8 @@ change.
 	import (
 		"github.com/conformal/btcdb"
 		_ "github.com/conformal/btcdb/ldb"
+		"github.com/conformal/btcnet"
 		"github.com/conformal/btcutil"
-		"github.com/conformal/btcwire"
 	)
 
 	// Create a database and schedule it to be closed on exit.
@@ -34,7 +34,7 @@ change.
 
 
 	// Insert the main network genesis block.
-	genesis := btcutil.NewBlock(&btcwire.GenesisBlock)
+	genesis := btcutil.NewBlock(btcnet.MainNetParams.GenesisBlock)
 	newHeight, err := db.InsertBlock(genesis)
 	if err != nil {
 		// Log and handle the error
diff --git a/common_test.go b/common_test.go
index ffe2653f..2d283b1a 100644
--- a/common_test.go
+++ b/common_test.go
@@ -11,6 +11,7 @@ import (
 	"github.com/conformal/btcdb"
 	_ "github.com/conformal/btcdb/ldb"
 	_ "github.com/conformal/btcdb/memdb"
+	"github.com/conformal/btcnet"
 	"github.com/conformal/btcutil"
 	"github.com/conformal/btcwire"
 	"io"
@@ -138,7 +139,7 @@ func setupDB(dbType, dbName string) (btcdb.Db, func(), error) {
 
 	// Insert the main network genesis block.  This is part of the initial
 	// database setup.
-	genesisBlock := btcutil.NewBlock(&btcwire.GenesisBlock)
+	genesisBlock := btcutil.NewBlock(btcnet.MainNetParams.GenesisBlock)
 	_, err = db.InsertBlock(genesisBlock)
 	if err != nil {
 		teardown()
@@ -177,7 +178,7 @@ func loadBlocks(t *testing.T) ([]*btcutil.Block, error) {
 
 	// Set the first block as the genesis block.
 	blocks := make([]*btcutil.Block, 0, 256)
-	genesis := btcutil.NewBlock(&btcwire.GenesisBlock)
+	genesis := btcutil.NewBlock(btcnet.MainNetParams.GenesisBlock)
 	blocks = append(blocks, genesis)
 
 	for height := int64(1); err == nil; height++ {
diff --git a/doc.go b/doc.go
index eb5e426d..5a89f75d 100644
--- a/doc.go
+++ b/doc.go
@@ -33,8 +33,8 @@ referenced parent block to already exist.  In a more concrete example:
 	import (
 		"github.com/conformal/btcdb"
 		_ "github.com/conformal/btcdb/ldb"
+		"github.com/conformal/btcnet"
 		"github.com/conformal/btcutil"
-		"github.com/conformal/btcwire"
 	)
 
 	// Create a database and schedule it to be closed on exit.
@@ -47,7 +47,7 @@ referenced parent block to already exist.  In a more concrete example:
 
 
 	// Insert the main network genesis block.
-	genesis := btcutil.NewBlock(&btcwire.GenesisBlock)
+	genesis := btcutil.NewBlock(btcnet.MainNetParams.GenesisBlock)
 	newHeight, err := db.InsertBlock(genesis)
 	if err != nil {
 		// Log and handle the error
diff --git a/ldb/operational_test.go b/ldb/operational_test.go
index d9a6b2ea..2e8f82db 100644
--- a/ldb/operational_test.go
+++ b/ldb/operational_test.go
@@ -9,6 +9,7 @@ import (
 	"encoding/binary"
 	"fmt"
 	"github.com/conformal/btcdb"
+	"github.com/conformal/btcnet"
 	"github.com/conformal/btcutil"
 	"github.com/conformal/btcwire"
 	"io"
@@ -246,7 +247,7 @@ func loadBlocks(t *testing.T, file string) (blocks []*btcutil.Block, err error)
 	}()
 
 	// Set the first block as the genesis block.
-	genesis := btcutil.NewBlock(&btcwire.GenesisBlock)
+	genesis := btcutil.NewBlock(btcnet.MainNetParams.GenesisBlock)
 	blocks = append(blocks, genesis)
 
 	var block *btcutil.Block
diff --git a/memdb/memdb_test.go b/memdb/memdb_test.go
index 4d96b149..f5684483 100644
--- a/memdb/memdb_test.go
+++ b/memdb/memdb_test.go
@@ -7,6 +7,7 @@ package memdb_test
 import (
 	"github.com/conformal/btcdb"
 	"github.com/conformal/btcdb/memdb"
+	"github.com/conformal/btcnet"
 	"github.com/conformal/btcutil"
 	"github.com/conformal/btcwire"
 	"reflect"
@@ -23,13 +24,13 @@ func TestClosed(t *testing.T) {
 		t.Errorf("Failed to open test database %v", err)
 		return
 	}
-	_, err = db.InsertBlock(btcutil.NewBlock(&btcwire.GenesisBlock))
+	_, err = db.InsertBlock(btcutil.NewBlock(btcnet.MainNetParams.GenesisBlock))
 	if err != nil {
 		t.Errorf("InsertBlock: %v", err)
 	}
 	db.Close()
 
-	genesisHash := &btcwire.GenesisHash
+	genesisHash := btcnet.MainNetParams.GenesisHash
 	if err := db.DropAfterBlockBySha(genesisHash); err != memdb.ErrDbClosed {
 		t.Errorf("DropAfterBlockBySha: unexpected error %v", err)
 	}
@@ -50,10 +51,14 @@ func TestClosed(t *testing.T) {
 		t.Errorf("FetchHeightRange: unexpected error %v", err)
 	}
 
-	genesisMerkleRoot := &btcwire.GenesisMerkleRoot
-	if exists := db.ExistsTxSha(genesisMerkleRoot); exists != false {
+	genesisCoinbaseTx := btcnet.MainNetParams.GenesisBlock.Transactions[0]
+	coinbaseHash, err := genesisCoinbaseTx.TxSha()
+	if err != nil {
+		t.Errorf("TxSha: unexpected error %v", err)
+	}
+	if exists := db.ExistsTxSha(&coinbaseHash); exists != false {
 		t.Errorf("ExistsTxSha: hash %v exists when it shouldn't",
-			genesisMerkleRoot)
+			&coinbaseHash)
 	}
 
 	if _, err := db.FetchTxBySha(genesisHash); err != memdb.ErrDbClosed {