diff --git a/params/version.go b/params/version.go
index a0642b02..4007f734 100644
--- a/params/version.go
+++ b/params/version.go
@@ -25,7 +25,7 @@ const (
 	VersionMinor = 9        // Minor version component of the current release
 	VersionPatch = 7        // Patch version component of the current release
 	VersionCross = 0        // Cross version component of the current release
-	VersionMeta  = "v0.1.3" // Version metadata to append to the version string
+	VersionMeta  = "v0.2.0" // Version metadata to append to the version string
 )
 
 // Version holds the textual version string.
diff --git a/vendor/github.com/elastos/Elastos.ELA.SPV/blockchain/blockchain.go b/vendor/github.com/elastos/Elastos.ELA.SPV/blockchain/blockchain.go
index c9885b58..5ec8a45b 100644
--- a/vendor/github.com/elastos/Elastos.ELA.SPV/blockchain/blockchain.go
+++ b/vendor/github.com/elastos/Elastos.ELA.SPV/blockchain/blockchain.go
@@ -258,5 +258,6 @@ func (b *BlockChain) Clear() error {
 // Close the blockchain
 func (b *BlockChain) Close() error {
 	b.lock.Lock()
+	defer b.lock.Unlock()
 	return b.db.Close()
 }