diff --git a/priv/templates/common/sys.config b/priv/templates/common/sys.config
index 9306744..6bff544 100644
--- a/priv/templates/common/sys.config
+++ b/priv/templates/common/sys.config
@@ -4,6 +4,8 @@
     ]},
 {{/grisp_io_linking}}
 {{#grisp_io}}    {grisp_updater, [
+        {signature_check, false}, % Set to 'true' and uncomment next line to enable signature check
+        % {signature_certificates, {priv, grisp_demo, "certificates/updates"}},
         {system, {grisp_updater_grisp2, #{}}},
         {sources, [
             {grisp_updater_tarball, #{}},