diff --git a/install.sh b/install.sh
index 8ab8b12a0..948dcf346 100644
--- a/install.sh
+++ b/install.sh
@@ -69,7 +69,7 @@ is_log_dir=/var/log/$is_core
 is_sh_bin=/usr/local/bin/$is_core
 is_sh_dir=$is_core_dir/sh
 is_sh_repo=$author/$is_core
-is_pkg="wget unzip jq qrencode"
+is_pkg="wget unzip jq"
 is_config_json=$is_core_dir/config.json
 tmp_var_lists=(
     tmpcore
diff --git a/src/core.sh b/src/core.sh
index b971ebf2c..322531c5e 100644
--- a/src/core.sh
+++ b/src/core.sh
@@ -203,7 +203,7 @@ is_port_used() {
     fi
     is_cant_test_port=1
     msg "$is_warn 无法检测端口是否可用."
-    msg "请执行: $(_yellow "${cmd}update -y; ${cmd}install net-tools -y") 来修复此问题."
+    msg "请执行: $(_yellow "${cmd} update -y; ${cmd} install net-tools -y") 来修复此问题."
 }
 
 # ask input a string or pick a option for list.
@@ -1553,7 +1553,11 @@ url_qr() {
             link="https://233boy.github.io/tools/qr.html#${is_url}"
             msg "\n------------- $is_config_name & QR code 二维码 -------------"
             msg
-            qrencode -t ANSI "${is_url}"
+            if [[ $(type -P qrencode) ]]; then
+                qrencode -t ANSI "${is_url}"
+            else
+                msg "请安装 qrencode: $(_green "$cmd update -y; $cmd install qrencode -y")"
+            fi
             msg
             msg "如果无法正常显示或识别, 请使用下面的链接来生成二维码:"
             msg "\n\e[4;${is_color}m${link}\e[0m\n"
diff --git a/v2ray.sh b/v2ray.sh
index c012feb08..77c89907e 100644
--- a/v2ray.sh
+++ b/v2ray.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
 args=$@
-is_sh_ver=v4.05
+is_sh_ver=v4.06
 
 . /etc/v2ray/sh/src/init.sh