diff --git a/init-apt.sh b/init-apt.sh
index e8f1062..93d5ac7 100644
--- a/init-apt.sh
+++ b/init-apt.sh
@@ -12,7 +12,9 @@ fi
 # 配置镜像源
 echo "deb https://mirrors.martin98.com/repository/$lsb_dist $release $components" > /etc/apt/sources.list
 # docker
-curl -fsSL https://mirrors.martin98.com/repository/docker-ce/linux/$lsb_dist/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg --clobber
+if [ ! -f /usr/share/keyrings/docker-archive-keyring.gpg ]; then
+    curl -fsSL https://mirrors.martin98.com/repository/docker-ce/linux/$lsb_dist/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
+fi
 echo "deb [signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://mirrors.martin98.com/repository/docker-ce/linux/$lsb_dist $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
 
 # 关闭交互式弹窗