diff --git a/backend/SystemUpdater/Core/filter.py b/backend/SystemUpdater/Core/filter.py
index b024d1e..e0fc0ae 100644
--- a/backend/SystemUpdater/Core/filter.py
+++ b/backend/SystemUpdater/Core/filter.py
@@ -142,9 +142,9 @@ class UpdateListFilterCache(apt.Cache):
                 else:                   # 判断升级列表
                     for nv in new_ver:
                         if nv > pkg.installed and nv != pkg.candidate:
-                            logging.info("adjusting candidate version: %s" % new_ver)
+                            logging.info("adjusting candidate version: %s" % nv)
                             if _is_adjust == True:
-                                pkg.candidate = new_ver
+                                pkg.candidate = nv
                             adjust_candidate_pkgs.append(pkg.name+"="+pkg.candidate.version)
                             break
                         elif nv > pkg.installed and nv == pkg.candidate: