diff --git a/scripts/install b/scripts/install
index 008768a..db7f196 100644
--- a/scripts/install
+++ b/scripts/install
@@ -64,7 +64,7 @@ chown $app:www-data "$install_dir/include/ost-config.php"
 ynh_script_progression --message="Building plugins..." --weight=1
 
 mkdir -p "$install_dir/include/plugins/build/.config/composer"
-chmod 666 "$install_dir/include/plugins/build/.config/composer"
+chmod 660 "$install_dir/include/plugins/build/.config/composer"
 chown $app:www-data "$install_dir/include/plugins/build/.config/composer"
 
 export COMPOSER_HOME="$install_dir/include/plugins/build/.config/composer"