diff --git a/src/main/scala/gitbucket/core/service/RepositoryService.scala b/src/main/scala/gitbucket/core/service/RepositoryService.scala
index f4ab4be..5381b40 100644
--- a/src/main/scala/gitbucket/core/service/RepositoryService.scala
+++ b/src/main/scala/gitbucket/core/service/RepositoryService.scala
@@ -338,7 +338,7 @@
             repository.originUserName.getOrElse(repository.userName),
             repository.originRepositoryName.getOrElse(repository.repositoryName)
           ),
-          getRepositoryManagers(repository.userName)
+          getRepositoryManagers(repository.userName, repository.repositoryName)
         )
     }
   }
@@ -407,7 +407,7 @@
           if (withoutPhysicalInfo) {
             Nil
           } else {
-            getRepositoryManagers(repository.userName)
+            getRepositoryManagers(repository.userName, repository.repositoryName)
           }
         )
       }
@@ -485,18 +485,21 @@
           if (withoutPhysicalInfo) {
             Nil
           } else {
-            getRepositoryManagers(repository.userName)
+            getRepositoryManagers(repository.userName, repository.repositoryName)
           }
         )
       }
   }
 
-  private def getRepositoryManagers(userName: String)(implicit s: Session): Seq[String] =
+  /**
+   * TODO It seems to be able to improve performance. For example, RequestCache can be used for getAccountByUserName call.
+   */
+  private def getRepositoryManagers(userName: String, repositoryName: String)(implicit s: Session): Seq[String] =
     if (getAccountByUserName(userName).exists(_.isGroupAccount)) {
       getGroupMembers(userName).collect { case x if (x.isManager) => x.userName }
     } else {
       Seq(userName)
-    }
+    } ++ getCollaboratorUserNames(userName, repositoryName, Seq(Role.ADMIN))
 
   /**
    * Updates the last activity date of the repository.