diff --git a/src/main/java/com/guams/review/controller/AuthorController.java b/src/main/java/com/guams/review/controller/AuthorController.java
index 57c0662..97eeba9 100644
--- a/src/main/java/com/guams/review/controller/AuthorController.java
+++ b/src/main/java/com/guams/review/controller/AuthorController.java
@@ -71,9 +71,9 @@ public class AuthorController {
     }
 
     @PutMapping("/{id}/posts")
-    public void updateUserPosts(@PathVariable("id") UUID authorId, @RequestBody List<Long> postIds, Authentication authentication) {
+    public void updateUserPosts(@PathVariable("id") UUID authorId, @RequestBody Long postId, Authentication authentication) {
         Author author = authorService.verifyIfUserIsAuthorized(authentication, authorId);
-        authorService.insertPublications(author.getId(), postIds);
+        authorService.insertPublications(author.getId(), postId);
     }
 
     @GetMapping("/{id}/posts")
diff --git a/src/main/java/com/guams/review/service/AuthorService.java b/src/main/java/com/guams/review/service/AuthorService.java
index ee266a7..db54a7e 100644
--- a/src/main/java/com/guams/review/service/AuthorService.java
+++ b/src/main/java/com/guams/review/service/AuthorService.java
@@ -47,12 +47,9 @@ public class AuthorService implements UserDetailsService
     }
 
     @Transactional
-    public void insertPublications(UUID authorId, List<Long> postIds) {
-        for (Long postId : postIds) {
-            authorRepository.deletePublication(authorId, postId);
+    public void insertPublications(UUID authorId, Long postId) {
             if (postRepository.findById(postId).isPresent()) {
                 authorRepository.insertPublication(authorId, postId);
-            }
         }
     }