diff --git a/README.md b/README.md
index 7cdde6d..66c5c62 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 ![License](https://img.shields.io/badge/License-Apache%202.0-red)
 ![Dockerized](https://img.shields.io/badge/Dockerized-yes-brightgreen)
-![Version](https://img.shields.io/badge/Version-v1.4-yellow)
+![Version](https://img.shields.io/badge/Version-v1.5-yellow)
 [![Docker Pulls](https://img.shields.io/docker/pulls/webkubectl/webkubectl.svg)](https://hub.docker.com/r/webkubectl/webkubectl)
 ![HitCount](http://hits.dwyl.io/webkubectl/webkubectl.svg)
 
diff --git a/README.zh_CN.md b/README.zh_CN.md
index 3223d72..88821fb 100644
--- a/README.zh_CN.md
+++ b/README.zh_CN.md
@@ -4,7 +4,7 @@
 
 ![License](https://img.shields.io/badge/License-Apache%202.0-red)
 ![Dockerized](https://img.shields.io/badge/Dockerized-yes-brightgreen)
-![Version](https://img.shields.io/badge/Version-v1.4-yellow)
+![Version](https://img.shields.io/badge/Version-v1.5-yellow)
 [![Docker Pulls](https://img.shields.io/docker/pulls/webkubectl/webkubectl.svg)](https://hub.docker.com/r/webkubectl/webkubectl)
 ![HitCount](http://hits.dwyl.io/webkubectl/webkubectl.svg)
 
diff --git a/init-kubectl.sh b/init-kubectl.sh
index dbfd27b..804c286 100644
--- a/init-kubectl.sh
+++ b/init-kubectl.sh
@@ -26,4 +26,6 @@ if [ "${WELCOME_BANNER}" ]; then
     echo ${WELCOME_BANNER}
 fi
 
+export TMPDIR=/nonexistent
+
 exec su -s /bin/bash nobody
\ No newline at end of file