diff --git a/images/ubuntu/scripts/build/install-container-tools.sh b/images/ubuntu/scripts/build/install-container-tools.sh
index be659b6fb..d10bbf15b 100644
--- a/images/ubuntu/scripts/build/install-container-tools.sh
+++ b/images/ubuntu/scripts/build/install-container-tools.sh
@@ -29,7 +29,7 @@ fi
 apt-get update
 apt-get -y install ${install_packages[@]}
 mkdir -p /etc/containers
-echo -e "[registries.search]\nregistries = ['docker.io', 'quay.io']" | tee /etc/containers/registries.conf
+printf "[registries.search]\nregistries = ['docker.io', 'quay.io']\n" | tee /etc/containers/registries.conf
 
 if isUbuntu20; then
     # Remove source repo
diff --git a/images/ubuntu/scripts/helpers/install.sh b/images/ubuntu/scripts/helpers/install.sh
index e6b793bac..ee918f2b6 100644
--- a/images/ubuntu/scripts/helpers/install.sh
+++ b/images/ubuntu/scripts/helpers/install.sh
@@ -60,7 +60,7 @@ IsPackageInstalled() {
 }
 
 verlte() {
-    sortedVersion=$(echo -e "$1\n$2" | sort -V | head -n1)
+    sortedVersion=$(printf "$1\n$2\n" | sort -V | head -n1)
     [  "$1" = "$sortedVersion" ]
 }