diff --git a/internal/dao/jinzhu/security.go b/internal/dao/jinzhu/security.go
index 18a8ccae..5d931f42 100644
--- a/internal/dao/jinzhu/security.go
+++ b/internal/dao/jinzhu/security.go
@@ -48,7 +48,7 @@ func (s *securitySrv) UsePhoneCaptcha(captcha *ms.Captcha) error {
 
 // SendPhoneCaptcha 发送短信验证码
 func (s *securitySrv) SendPhoneCaptcha(phone string) error {
-	expire := time.Duration(5)
+	expire := 5 * time.Minute
 
 	// 发送验证码
 	captcha := strconv.Itoa(s.rand.Intn(900000) + 100000)
diff --git a/web/src/components/compose.vue b/web/src/components/compose.vue
index 5c41c254..841b6ff6 100644
--- a/web/src/components/compose.vue
+++ b/web/src/components/compose.vue
@@ -616,7 +616,8 @@ const submitPost = () => {
       imageContents.value = [];
       videoContents.value = [];
       attachmentContents.value = [];
-      visitType.value = defaultVisitType.value;
+      // 始终将可见性重置为"公开"
+      visitType.value = VisibilityEnum.PUBLIC;
     })
     .catch((err) => {
       submitting.value = false;
@@ -637,7 +638,8 @@ onMounted(() => {
   } else {
     defaultVisitType.value = VisibilityEnum.PRIVATE;
   }
-  visitType.value = defaultVisitType.value;
+  // 始终将可见性设置为"公开"
+  visitType.value = VisibilityEnum.PUBLIC;
 });
 </script>