diff --git a/admin/src/api/post/content-types/post/lifecycles.js b/admin/src/api/post/content-types/post/lifecycles.js
index 96b2984..e7315c2 100644
--- a/admin/src/api/post/content-types/post/lifecycles.js
+++ b/admin/src/api/post/content-types/post/lifecycles.js
@@ -151,7 +151,7 @@ function validateFields(result, is_from_update) {
   if (Object.keys(result).length <= 3) {
     return;
   }
-  
+
   if (!result.title) {
     const error = new YupValidationError({
       path: "title",
@@ -167,17 +167,12 @@ function validateFields(result, is_from_update) {
     });
     throw error;
   }
-  
-  // required author when add post
-  if (!is_from_update && result.author.connect.length == 0) {
-    const error = new YupValidationError({
-      path: "author",
-      message: "This value is required.",
-    });
-    throw error;
-  }
-  // required author when update post
-  if (is_from_update && result.author.disconnect.length > 0) {
+
+  if (
+    (result.author.disconnect.length > 0 &&
+      result.author.connect.length == 0) ||
+    (result.author.connect.length == 0 && result.author.disconnect.length == 0)
+  ) {
     const error = new YupValidationError({
       path: "author",
       message: "This value is required.",