diff --git a/core/state/reader.go b/core/state/reader.go
index d99a8aa807..ab6638bbe3 100644
--- a/core/state/reader.go
+++ b/core/state/reader.go
@@ -74,7 +74,7 @@ func newStateReader(reader database.StateReader) *stateReader {
 //
 // The returned account might be nil if it's not existent.
 func (r *stateReader) Account(addr common.Address) (*types.StateAccount, error) {
-	account, err := r.reader.Account(crypto.HashData(r.buff, addr.Bytes()))
+	account, err := r.reader.Account(crypto.HashData(crypto.NewKeccakState(), addr.Bytes()))
 	if err != nil {
 		return nil, err
 	}
@@ -104,8 +104,8 @@ func (r *stateReader) Account(addr common.Address) (*types.StateAccount, error)
 //
 // The returned storage slot might be empty if it's not existent.
 func (r *stateReader) Storage(addr common.Address, key common.Hash) (common.Hash, error) {
-	addrHash := crypto.HashData(r.buff, addr.Bytes())
-	slotHash := crypto.HashData(r.buff, key.Bytes())
+	addrHash := crypto.HashData(crypto.NewKeccakState(), addr.Bytes())
+	slotHash := crypto.HashData(crypto.NewKeccakState(), key.Bytes())
 	ret, err := r.reader.Storage(addrHash, slotHash)
 	if err != nil {
 		return common.Hash{}, err
@@ -218,7 +218,7 @@ func (r *trieReader) Storage(addr common.Address, key common.Hash) (common.Hash,
 				root = r.subRoots[addr]
 			}
 			var err error
-			tr, err = trie.NewStateTrie(trie.StorageTrieID(r.root, crypto.HashData(r.buff, addr.Bytes()), root), r.db)
+			tr, err = trie.NewStateTrie(trie.StorageTrieID(r.root, crypto.HashData(crypto.NewKeccakState(), addr.Bytes()), root), r.db)
 			if err != nil {
 				return common.Hash{}, err
 			}
diff --git a/params/version.go b/params/version.go
index 9fd069466e..dbd67a255a 100644
--- a/params/version.go
+++ b/params/version.go
@@ -25,7 +25,7 @@ import (
 const (
 	VersionMajor = 2  // Major version component of the current release
 	VersionMinor = 0  // Minor version component of the current release
-	VersionPatch = 2  // Patch version component of the current release
+	VersionPatch = 3  // Patch version component of the current release
 	VersionMeta  = "" // Version metadata to append to the version string
 )