diff --git a/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt b/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
index 61f883cde..d228fa66f 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
@@ -237,7 +237,7 @@ class BookSourceActivity : VMBaseActivity<ActivityBookSourceBinding, BookSourceV
                             o1.bookSourceName.cnCompare(o2.bookSourceName)
                         }
                         Sort.Url -> data.sortedBy { it.bookSourceUrl }
-                        Sort.Update -> data.sortedBy { it.lastUpdateTime }
+                        Sort.Update -> data.sortedByDescending { it.lastUpdateTime }
                         Sort.Respond -> data.sortedBy { it.respondTime }
                         Sort.Enable -> data.sortedWith { o1, o2 ->
                             var sort = -o1.enabled.compareTo(o2.enabled)
@@ -254,7 +254,7 @@ class BookSourceActivity : VMBaseActivity<ActivityBookSourceBinding, BookSourceV
                             o2.bookSourceName.cnCompare(o1.bookSourceName)
                         }
                         Sort.Url -> data.sortedByDescending { it.bookSourceUrl }
-                        Sort.Update -> data.sortedByDescending { it.lastUpdateTime }
+                        Sort.Update -> data.sortedBy { it.lastUpdateTime }
                         Sort.Respond -> data.sortedByDescending { it.respondTime }
                         Sort.Enable -> data.sortedWith { o1, o2 ->
                             var sort = o1.enabled.compareTo(o2.enabled)