diff --git a/src/main/java/run/halo/app/content/impl/PostServiceImpl.java b/src/main/java/run/halo/app/content/impl/PostServiceImpl.java
index 3c5f0984c..60419200c 100644
--- a/src/main/java/run/halo/app/content/impl/PostServiceImpl.java
+++ b/src/main/java/run/halo/app/content/impl/PostServiceImpl.java
@@ -165,7 +165,7 @@ public class PostServiceImpl implements PostService {
 
     private Mono<ListedPost> setTags(List<String> tagNames, ListedPost post) {
         return listTags(tagNames)
-            .collectSortedList()
+            .collectList()
             .doOnNext(post::setTags)
             .map(tags -> post)
             .switchIfEmpty(Mono.defer(() -> Mono.just(post)));
@@ -173,7 +173,7 @@ public class PostServiceImpl implements PostService {
 
     private Mono<ListedPost> setCategories(List<String> categoryNames, ListedPost post) {
         return listCategories(categoryNames)
-            .collectSortedList()
+            .collectList()
             .doOnNext(post::setCategories)
             .map(categories -> post)
             .switchIfEmpty(Mono.defer(() -> Mono.just(post)));
@@ -181,7 +181,7 @@ public class PostServiceImpl implements PostService {
 
     private Mono<ListedPost> setContributors(List<String> contributorNames, ListedPost post) {
         return listContributors(contributorNames)
-            .collectSortedList()
+            .collectList()
             .doOnNext(post::setContributors)
             .map(contributors -> post)
             .switchIfEmpty(Mono.defer(() -> Mono.just(post)));