diff --git a/src/main/resources/templates/ologin.html b/src/main/resources/templates/ologin.html
index 41302e1..8f9362e 100644
--- a/src/main/resources/templates/ologin.html
+++ b/src/main/resources/templates/ologin.html
@@ -85,6 +85,11 @@
         base: 'custom/module/'
     }).use(['form'], function () {
         var $ = layui.jquery;
+
+        // 图形验证码
+        $('.login-captcha').click(function () {
+            this.src = this.src + '?t=' + (new Date).getTime();
+        });
     });
 </script>
 </body>