diff --git a/update.sh b/update.sh
index a0a537d..9268ef2 100644
--- a/update.sh
+++ b/update.sh
@@ -18,7 +18,7 @@ if [ -f /etc/debian_version ]; then
     apt update; apt upgrade -y
     
     # install the apt-transport-https
-    apt install -y apt-transport-https wget
+    apt install -y apt-transport-https wget gnupg2
     
     # download the gpg key for PBIS-Open
     wget -O - http://repo.pbis.beyondtrust.com/apt/RPM-GPG-KEY-pbis | apt-key add -