diff --git a/sa-token-core/src/main/java/cn/dev33/satoken/util/SaFoxUtil.java b/sa-token-core/src/main/java/cn/dev33/satoken/util/SaFoxUtil.java
index 97accc8a..552ed240 100644
--- a/sa-token-core/src/main/java/cn/dev33/satoken/util/SaFoxUtil.java
+++ b/sa-token-core/src/main/java/cn/dev33/satoken/util/SaFoxUtil.java
@@ -28,10 +28,6 @@ import cn.dev33.satoken.exception.SaTokenException;
  *
  */
 public class SaFoxUtil {
-	/**
-	 * 可以减少线程争用的随机对象
-	 */
-	private static final ThreadLocalRandom RANDOM = ThreadLocalRandom.current();
 
 	private SaFoxUtil() {
 	}
@@ -64,7 +60,7 @@ public class SaFoxUtil {
 		String str = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
 		StringBuffer sb = new StringBuffer();
 		for (int i = 0; i < length; i++) {
-			int number = RANDOM.nextInt(62);
+			int number = ThreadLocalRandom.current().nextInt(62);
 			sb.append(str.charAt(number));
 		}
 		return sb.toString();
@@ -113,7 +109,7 @@ public class SaFoxUtil {
 	 * @return 随机字符串
 	 */
 	public static String getMarking28() {
-		return System.currentTimeMillis() + "" + RANDOM.nextInt(Integer.MAX_VALUE);
+		return System.currentTimeMillis() + "" + ThreadLocalRandom.current().nextInt(Integer.MAX_VALUE);
 	}
 
 	/**