Improve security of sandbox permissions

Change-Id: Ia39083ae521be5b06f0740d42f43b0383e220b1f
diff --git a/package.json b/package.json
index a04794c..a7aa8e6 100755
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "Kalamar",
   "description": "Mojolicious-based Frontend for KorAP",
   "license": "BSD-2-Clause",
-  "version": "0.39.4",
+  "version": "0.39.5",
   "pluginVersion": "0.2.2",
   "engines": {
     "node": ">=6.0.0"