diff --git a/.gitignore b/.gitignore
index c6393d7..cc42cc8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /2ping-2.0.tar.gz
 /2ping-3.2.0.tar.gz
 /2ping-3.2.1.tar.gz
+/2ping-4.1.tar.gz
diff --git a/2ping.spec b/2ping.spec
index 5208e62..86b2946 100644
--- a/2ping.spec
+++ b/2ping.spec
@@ -1,14 +1,15 @@
 Name:           2ping
-Version:        3.2.1
-Release:        5%{?dist}
+Version:        4.1
+Release:        1%{?dist}
 Summary:        Bi-directional ping utility
 License:        GPLv2+
 URL:            http://www.finnie.org/software/2ping
 Source0:        http://www.finnie.org/software/%{name}/%{name}-%{version}.tar.gz
 BuildArch:      noarch
-BuildRequires:  python2-devel
-BuildRequires:  python-setuptools
-%{?python_provide:%python_provide python2-%{name}}
+BuildRequires:  python3-devel
+BuildRequires:  python3-setuptools
+BuildRequires:  pycryptopp
+%{?python_provide:%python_provide python3-%{name}}
 
 %description
 2ping is a bi-directional ping utility. It uses 3-way pings (akin to TCP SYN, 
@@ -19,26 +20,29 @@ a 2ping client to determine which direction packet loss occurs.
 %setup -n %{name}-%{version}
 
 %build
-%py2_build
+%py3_build
 
 %install
-%py2_install
+%py3_install
 install -d -m 0755 %{buildroot}/usr/share/man/man1
 install -m 0644 doc/2ping.1 %{buildroot}/usr/share/man/man1/2ping.1
 install -m 0644 doc/2ping.1 %{buildroot}/usr/share/man/man1/2ping6.1
 
 %check
-%{__python2} setup.py test
+%{__python3} setup.py test
 
 %files
 %doc ChangeLog COPYING README
-%{python2_sitelib}/*
-%{_bindir}/2ping
-%{_bindir}/2ping6
-%{_mandir}/man1/2ping.1*
-%{_mandir}/man1/2ping6.1*
+%{python3_sitelib}/*
+%{_bindir}/%{name}
+%{_bindir}/%{name}6
+%{_mandir}/man1/%{name}.1*
+%{_mandir}/man1/%{name}6.1*
 
 %changelog
+* Thu Aug 24 2016 Fabio Alessandro Locati <fale@fedoraproject.org> - 4.1-1
+- Update to 4.1
+
 * Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 3.2.1-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
 
diff --git a/sources b/sources
index a487712..c49b602 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-493da290b39cc055d1c095bf3bc8418a  2ping-3.2.1.tar.gz
+SHA512 (2ping-4.1.tar.gz) = 926a515156bf0b9e7c09e72f0e557571f3905646eaec2e8c4702a7dd7ed77b9ab298323028beb02c844d719839458f9d056fb5d29443e908b0d927754f856553