diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5f0c79994..e4371ccb1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,9 +3,10 @@
 
 -------------------------------------------------------------------------------------------------------------
 
-# 5.7.4 (2021-06-30)
+# 5.7.4 (2021-07-02)
 
 ### 🐣新特性
+* 【crypto 】     SmUtil.sm4统一返回类型（issue#I3YKD4@Gitee）
 ### 🐞Bug修复
 
 -------------------------------------------------------------------------------------------------------------
diff --git a/hutool-crypto/src/main/java/cn/hutool/crypto/SmUtil.java b/hutool-crypto/src/main/java/cn/hutool/crypto/SmUtil.java
index 2bc3a2236..e78df4dc0 100644
--- a/hutool-crypto/src/main/java/cn/hutool/crypto/SmUtil.java
+++ b/hutool-crypto/src/main/java/cn/hutool/crypto/SmUtil.java
@@ -188,9 +188,9 @@ public class SmUtil {
 	 * </pre>
 	 *
 	 * @param key 密钥
-	 * @return {@link SymmetricCrypto}
+	 * @return {@link SM4}
 	 */
-	public static SymmetricCrypto sm4(byte[] key) {
+	public static SM4 sm4(byte[] key) {
 		return new SM4(key);
 	}