diff --git a/build/debian/DEBIAN/control b/build/debian/DEBIAN/control
index 9cbb0cb..5a8e563 100644
--- a/build/debian/DEBIAN/control
+++ b/build/debian/DEBIAN/control
@@ -5,5 +5,6 @@ Section: web
 Homepage: https://netsyms.com/apps/ipentool
 Priority: optional
 Depends: nw.js-normal | nw.js
+Recommends: gpg
 Description: GUI tool for in person electronic notarization of PDF files.
 Architecture: all