diff --git a/README.md b/README.md
index 2cf4c63992f4252305c772464b479dadb615462f..73a7b76e36b8bfb1bd458963b0932a9e3a6e0c1a 100644
--- a/README.md
+++ b/README.md
@@ -119,4 +119,4 @@ the script will remove **kernel1**, **kernel2** and **kernel3**
 ### ToDo
 
 * The algorithm can be improved to remove intermediate kernels, avoiding that in a corner case you get `count + 1`. If count is set to 1 it won't work in any case (you can't remove the running kernel and you don't want to remove the latest), but, if count is set to a higher number the scenario is the following:
-  * Imagine you have 3 kernels installed, you have count set to 2 and you are running the older kernel, then you can remove the intermediate kernel. Right now it ends up leaving `count + 1` until reboot happens.
+  * Imagine you have 3 kernels installed, `count` is set to 2 and you are running the older kernel, then you can remove the intermediate kernel. Right now it ends up leaving `count + 1` until reboot happens.
diff --git a/create_deb_package.sh b/create_deb_package.sh
index d0d587562737a0858ecffe3ac8e16279870d3cf0..3b7fb41271afb6aec358f5fb56c864d2c32e51c6 100755
--- a/create_deb_package.sh
+++ b/create_deb_package.sh
@@ -16,7 +16,7 @@ if ! which fpm &>/dev/null; then
 fi
 
 PROG_NAME="ubuntu-kernel-cleanup"
-EMAIL="Massimiliano Adamo<massimiliano.adamo@geant.org"
+EMAIL="Massimiliano Adamo<massimiliano.adamo@geant.org>"
 DESCRIPTION="Clean up unused kernel packages"
 export VERSION EMAIL DESCRIPTION PROG_NAME
 
@@ -34,8 +34,8 @@ chmod 0644 README.txt ubuntu-kernel-cleanup.ini
 
 fpm -f -t deb --deb-use-file-permissions -n ${PROG_NAME} -v $PROG_VERSION --maintainer "$EMAIL"\
     --vendor "$EMAIL" -a all --description "$DESCRIPTION" --config-files etc/${PROG_NAME}.ini \
-    -p deb/${PROG_NAME}_${PROG_VERSION}_all.deb -d python3-docopt -d python3-packaging -s dir \
-    ${PROG_NAME}.ini=/etc/${PROG_NAME}.ini ${PROG_NAME}.py=/usr/bin/${PROG_NAME}.py \
+    -p deb/${PROG_NAME}_${PROG_VERSION}_all.deb -d python3-docopt -d python3-packaging -d python3-natsort \
+    -s dir ${PROG_NAME}.ini=/etc/${PROG_NAME}.ini ${PROG_NAME}.py=/usr/bin/${PROG_NAME}.py \
     README.txt=usr/share/doc/${PROG_NAME}/README.txt
 
 git checkout master
diff --git a/ubuntu-kernel-cleanup.py b/ubuntu-kernel-cleanup.py
index da27a9ddff9fd337e8d7f4f4df29ae1585616661..1979ece96a76ed15b0245bffed01c89dca115cad 100755
--- a/ubuntu-kernel-cleanup.py
+++ b/ubuntu-kernel-cleanup.py
@@ -20,7 +20,7 @@ import re
 import os
 import subprocess as sp
 import configparser
-from distutils.version import LooseVersion
+from natsort import natsorted
 import platform
 import apt
 try:
@@ -53,7 +53,7 @@ def get_packages_list(pkg_match):
     kernel_versions = [get_version(item) for item in kernels]
 
     # sort by version and unique
-    return sorted(list(set(kernel_versions)), key=LooseVersion)
+    return natsorted(list(set(kernel_versions)))
 
 
 def process_packages(version_number, prefix, execution_type):