diff --git a/kernel-d-security/security-sdk-captcha/src/main/java/cn/stylefeng/roses/kernel/security/captcha/util/DragCaptchaImageUtil.java b/kernel-d-security/security-sdk-captcha/src/main/java/cn/stylefeng/roses/kernel/security/captcha/util/DragCaptchaImageUtil.java
index d6763b695..35956be21 100644
--- a/kernel-d-security/security-sdk-captcha/src/main/java/cn/stylefeng/roses/kernel/security/captcha/util/DragCaptchaImageUtil.java
+++ b/kernel-d-security/security-sdk-captcha/src/main/java/cn/stylefeng/roses/kernel/security/captcha/util/DragCaptchaImageUtil.java
@@ -22,7 +22,7 @@ public class DragCaptchaImageUtil {
     /**
      * 验证码图片的base64编码
      */
-    public static final String IMAGE_BASE64 = "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";
+    public static final String IMAGE_BASE64 = "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";
 
     /**
      * 源文件宽度