diff --git a/samples/sdk-samples/src/test/java/test/com/jd/blockchain/sdk/test/SDK_Contract_Test.java b/samples/sdk-samples/src/test/java/test/com/jd/blockchain/sdk/test/SDK_Contract_Test.java
index 52e2be93..0425f5ce 100644
--- a/samples/sdk-samples/src/test/java/test/com/jd/blockchain/sdk/test/SDK_Contract_Test.java
+++ b/samples/sdk-samples/src/test/java/test/com/jd/blockchain/sdk/test/SDK_Contract_Test.java
@@ -6,6 +6,8 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 
+import com.jd.blockchain.crypto.base.DefaultCryptoEncoding;
+import com.jd.blockchain.crypto.base.HashDigestBytes;
 import org.junit.Before;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -297,7 +299,8 @@ public class SDK_Contract_Test {
 	}
 
 	private static HashDigest getLedgerHash() {
-		return new HashDigest(Base58Utils.decode(ledgerAddress));
+		byte[] addressBytes = Base58Utils.decode(ledgerAddress);
+		return new HashDigestBytes(DefaultCryptoEncoding.decodeAlgorithm(addressBytes), addressBytes);
 	}
 
 	/**
diff --git a/samples/sdk-samples/src/test/java/test/com/jd/blockchain/sdk/test/SDK_GateWay_BatchInsertData_Test_.java b/samples/sdk-samples/src/test/java/test/com/jd/blockchain/sdk/test/SDK_GateWay_BatchInsertData_Test_.java
index d459ac94..eb04157b 100644
--- a/samples/sdk-samples/src/test/java/test/com/jd/blockchain/sdk/test/SDK_GateWay_BatchInsertData_Test_.java
+++ b/samples/sdk-samples/src/test/java/test/com/jd/blockchain/sdk/test/SDK_GateWay_BatchInsertData_Test_.java
@@ -10,6 +10,8 @@ package test.com.jd.blockchain.sdk.test;
 
 import static org.junit.Assert.assertEquals;
 
+import com.jd.blockchain.crypto.base.DefaultCryptoEncoding;
+import com.jd.blockchain.crypto.base.HashDigestBytes;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -113,7 +115,7 @@ public class SDK_GateWay_BatchInsertData_Test_ {
 
     private HashDigest getLedgerHash() {
         byte[] hashBytes = Base58Utils.decode(ledgerHash);
-        return new HashDigest(hashBytes);
+        return new HashDigestBytes(DefaultCryptoEncoding.decodeAlgorithm(hashBytes), hashBytes);
     }