diff --git a/build_scripts/build_package.sh b/build_scripts/build_package.sh
index 8b2b0b961..2074ef5ef 100755
--- a/build_scripts/build_package.sh
+++ b/build_scripts/build_package.sh
@@ -98,7 +98,7 @@ clone_monkey_repo() {
 
 install_build_prereqs() {
   sudo apt-get update
-  sudo apt-get upgrade -y
+  sudo apt-get upgrade -y -o Dpkg::Options::="--force-confold"
 
   # monkey island prereqs
   sudo apt-get install -y curl libcurl4 openssl git build-essential moreutils