diff --git a/web/web_1/Dockerfile b/web/web_1/Dockerfile
index e3517d0..caa2ff0 100644
--- a/web/web_1/Dockerfile
+++ b/web/web_1/Dockerfile
@@ -2,4 +2,4 @@ FROM php:5.6-apache
 
 COPY /code /var/www/html/
 
-RUN chmod 755 /var/www/html/start.sh
\ No newline at end of file
+RUN chmod 751 /var/www/html/start.sh
\ No newline at end of file
diff --git a/web/web_2/Dockerfile b/web/web_2/Dockerfile
index e3517d0..caa2ff0 100644
--- a/web/web_2/Dockerfile
+++ b/web/web_2/Dockerfile
@@ -2,4 +2,4 @@ FROM php:5.6-apache
 
 COPY /code /var/www/html/
 
-RUN chmod 755 /var/www/html/start.sh
\ No newline at end of file
+RUN chmod 751 /var/www/html/start.sh
\ No newline at end of file
diff --git a/web/web_3/Dockerfile b/web/web_3/Dockerfile
index 573926a..492040c 100644
--- a/web/web_3/Dockerfile
+++ b/web/web_3/Dockerfile
@@ -2,6 +2,6 @@ FROM php:5.6-apache
 
 COPY /code /var/www/html/
 
-RUN chmod 4755 /bin/cat && chmod 777 /var/www/html/index.php && chmod 777 /var/www/html/option.php && chmod 777 /var/www/html/shell.sh  && chmod /var/www/html/start.sh
+RUN chmod 4755 /bin/cat && chmod 777 /var/www/html/index.php && chmod 777 /var/www/html/option.php && chmod 751 /var/www/html/shell.sh  && chmod 751 /var/www/html/start.sh
 
 
diff --git a/web/web_4/Dockerfile b/web/web_4/Dockerfile
index e3517d0..caa2ff0 100644
--- a/web/web_4/Dockerfile
+++ b/web/web_4/Dockerfile
@@ -2,4 +2,4 @@ FROM php:5.6-apache
 
 COPY /code /var/www/html/
 
-RUN chmod 755 /var/www/html/start.sh
\ No newline at end of file
+RUN chmod 751 /var/www/html/start.sh
\ No newline at end of file