diff --git a/apt-update.sh b/apt-update.sh
index f751c6e..4234f87 100755
--- a/apt-update.sh
+++ b/apt-update.sh
@@ -1,8 +1,8 @@
 #!/bin/bash
 apt-get -qq update
-listUpgrades=`apt list --upgradable |grep upgradable |cut -d/ -f1`
+listUpgrades=$(apt list --upgradable |grep upgradable |cut -d/ -f1)
 
-echo $listUpgrades
+echo "$listUpgrades"
 echo "=============================="
 
 execUpgrades="DEBIAN_FRONTEND=noninteractive apt-get --yes --assume-yes -o DPkg::options::=\"--force-confdef\" -o DPkg::options::=\"--force-confold\" --only-upgrade -qq install "$listUpgrades