diff --git a/debian/changelog b/debian/changelog
index 9ebd906..3f422e2 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,6 +1,7 @@
 spark-store (4.3.1) UNRELEASED; urgency=medium
 
   * 修复自提权更新问题
+  * 提升aptss稳定性
 
  -- shenmo <shenmo@spark-app.store>  Tue, 24 Sep 2024 11:27:08 +0800
 
diff --git a/tool/apt-fast/ss-apt-fast b/tool/apt-fast/ss-apt-fast
index 827ea8e..c051823 100755
--- a/tool/apt-fast/ss-apt-fast
+++ b/tool/apt-fast/ss-apt-fast
@@ -600,9 +600,18 @@ if [ "$option" == "install" ]; then
 
         eval "${_DOWNLOADER}"  # execute downloadhelper command
         if [ "$(find "$DLDIR" -printf . | wc -c)" -gt 1 ]; then
+
+          # Delete incomplete/corrupted downloaded files, if any: Not recursive, as we don't expect any dirs to exist within $DLDIR.
+
+          # When Aria2c downloads a file and detects it is corrupted, its filename won't be renamed back to its actual name,
+          # preserving .aria2 file extension, which also indicates when a file hasn't been completely downloaded.
+          for x in *.aria2; do
+            rm -f "$x" "${x%.aria2}"
+          done
+
           # Move all packages to the apt install directory by force to ensure
           # already existing debs which may be incomplete are replaced
-          find . -type f -name "*.deb" -execdir mv -ft "$APTCACHE" {} \+
+          find . -type f \( -name '*.deb' -o -name '*.ddeb' \) -execdir mv -ft "$APTCACHE" {} \+
         fi
         cd - &>/dev/null || msg "Failed to change back directory" "warning"
       fi
diff --git a/tool/aptss b/tool/aptss
index de4f4a6..aec8e86 100755
--- a/tool/aptss
+++ b/tool/aptss
@@ -78,7 +78,7 @@ if  [ "$1" = "install" ] || [ "$1" = "upgrade" ] || [ "$1" = "full-upgrade" ] ||
 
 ###执行
 
-                ${SS_APT_FAST} "$@" --allow-downgrades -c /opt/durapps/spark-store/bin/apt-fast-conf/aptss-apt.conf
+${SS_APT_FAST} "$@" --allow-downgrades -c /opt/durapps/spark-store/bin/apt-fast-conf/aptss-apt.conf
 ret="$?"
 if [ "$ret" -ne 0 ];then
 echo -e "\e[1;33m$TRANSHELL_CONTENT_PLEASE_USE_APTSS_INSTEAD_OF_APT\e[0m"
@@ -86,19 +86,7 @@ exit $ret
 fi
 
 
-elif [ "$1" = "download" ];then
 
-###执行
-
-                ${SS_APT_FAST} "$@" --allow-downgrades -c /opt/durapps/spark-store/bin/apt-fast-conf/aptss-apt.conf
-
-
-elif [ "$1" = "policy" ] || [ "$1" = "search" ];then
-
-
-
-###执行
-                /usr/bin/apt "$@"  -c /opt/durapps/spark-store/bin/apt-fast-conf/aptss-apt.conf
 
 elif [ "$1" = "ssupdate" ];then
 
@@ -116,6 +104,7 @@ curl --silent -o  /opt/durapps/spark-store/bin/apt-fast-conf/sources.list.d/spar
 #只更新星火源
 
 elif [ "$1" = "update" ];then
+
 echo -e "\e[1;32m${TRANSHELL_CONTENT_GETTING_SERVER_CONFIG_AND_MIRROR_LIST}\e[0m"
 echo
 curl --progress-bar -o /opt/durapps/spark-store/bin/apt-fast-conf/sources.list.d/sparkstore.list "${SPARK_DOWNLOAD_SERVER_URL}/sparkstore${STORE_LIST_URL}.list"
@@ -123,8 +112,10 @@ mkdir -p /tmp/aptss-conf/
 curl --progress-bar -o /tmp/aptss-conf/apt-fast.conf "${SPARK_DOWNLOAD_SERVER_URL}/apt-fast.conf"
 chmod -R 755 /tmp/aptss-conf    
 ### 额外一份拿来给aptss自动补全用
-                /usr/bin/apt "$@" -c /opt/durapps/spark-store/bin/apt-fast-conf/aptss-apt.conf
+
+                ${SS_APT_FAST} "$@" -c /opt/durapps/spark-store/bin/apt-fast-conf/aptss-apt.conf
 
 else
-                /usr/bin/apt "$@" -c /opt/durapps/spark-store/bin/apt-fast-conf/aptss-apt.conf
+                ${SS_APT_FAST} "$@" -c /opt/durapps/spark-store/bin/apt-fast-conf/aptss-apt.conf
 fi
+