diff --git a/jsowell-common/src/main/java/com/jsowell/common/util/AdapayUtil.java b/jsowell-common/src/main/java/com/jsowell/common/util/AdapayUtil.java
index e0a328f49..9b26b72f9 100644
--- a/jsowell-common/src/main/java/com/jsowell/common/util/AdapayUtil.java
+++ b/jsowell-common/src/main/java/com/jsowell/common/util/AdapayUtil.java
@@ -3,6 +3,7 @@ package com.jsowell.common.util;
 import lombok.extern.slf4j.Slf4j;
 
 import java.math.BigDecimal;
+import java.nio.charset.StandardCharsets;
 import java.security.KeyFactory;
 import java.security.PrivateKey;
 import java.security.PublicKey;
@@ -68,7 +69,7 @@ public class AdapayUtil {
 			// Sign
 			Signature signature = Signature.getInstance("SHA256WithRSA");
 			signature.initSign(privateKey);
-			signature.update(data.getBytes("UTF-8"));
+			signature.update(data.getBytes(StandardCharsets.UTF_8));
 			return Base64.getEncoder().encodeToString(signature.sign());
 		} catch (Exception e) {
 			return null;
@@ -93,7 +94,7 @@ public class AdapayUtil {
 			// verify
 			Signature signature = Signature.getInstance("SHA256WithRSA");
 			signature.initVerify(publicKey);
-			signature.update(data.getBytes("UTF-8"));
+			signature.update(data.getBytes(StandardCharsets.UTF_8));
 			return signature.verify(Base64.getDecoder().decode(sign));
 		} catch (Exception e) {
 			log.error("Exception", e);