diff --git a/configure_priv.sh b/configure_priv.sh
index 83f1936..31bdd2b 100755
--- a/configure_priv.sh
+++ b/configure_priv.sh
@@ -262,16 +262,9 @@ configure_nginx() {
         echo "deb [signed-by=/usr/share/keyrings/nginx.gpg] https://nginx.org/packages/ubuntu/ $(lsb_release -cs) nginx" | sudo tee /etc/apt/sources.list.d/nginx.list > /dev/null
         echo "deb-src [signed-by=/usr/share/keyrings/nginx.gpg] https://nginx.org/packages/ubuntu/ $(lsb_release -cs) nginx" | sudo tee -a /etc/apt/sources.list.d/nginx.list > /dev/null
     fi
-    if command_exists nginx; then
-        if confirm_action "要更新 nginx 吗？" "N"; then
-            sudo apt update
-            sudo apt upgrade nginx -y
-        fi
-    else
-        if confirm_action "要安装 nginx 吗？" "Y"; then
-            sudo apt update
-            sudo apt install nginx -y
-        fi
+    if confirm_action "要安装 nginx 吗？" "Y"; then
+        sudo apt update
+        sudo apt install nginx=1.20.2-1~$(lsb_release -cs) -y
     fi
 }