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 d3df967f4..4e62e5858 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
@@ -27,12 +27,12 @@ public class DragCaptchaImageUtil {
     /**
      * 源文件宽度
      */
-    private static final int ORI_WIDTH = 300;
+    private static final int ORI_WIDTH = 375;
 
     /**
      * 源文件高度
      */
-    private static final int ORI_HEIGHT = 150;
+    private static final int ORI_HEIGHT = 200;
 
     /**
      * 模板图宽度
diff --git a/kernel-s-system/system-business-permission/src/main/java/cn/stylefeng/roses/kernel/sys/modular/login/controller/CaptchaController.java b/kernel-s-system/system-business-permission/src/main/java/cn/stylefeng/roses/kernel/sys/modular/login/controller/CaptchaController.java
index 29fc54944..f0b2c2cf4 100644
--- a/kernel-s-system/system-business-permission/src/main/java/cn/stylefeng/roses/kernel/sys/modular/login/controller/CaptchaController.java
+++ b/kernel-s-system/system-business-permission/src/main/java/cn/stylefeng/roses/kernel/sys/modular/login/controller/CaptchaController.java
@@ -35,7 +35,6 @@ public class CaptchaController {
     public ResponseData<DragCaptchaImageDTO> getDragCaptcha() {
         DragCaptchaImageDTO captcha = dragCaptchaApi.createCaptcha();
         captcha.setLocationX(null);
-        captcha.setLocationY(null);
         return new SuccessResponseData<>(captcha);
     }