diff --git a/.gitignore b/.gitignore
index a50997f..3752d85 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,6 @@
 /NetworkManager-l2tp-1.20.4.tar.xz
 /NetworkManager-l2tp-1.20.6.tar.xz
 /NetworkManager-l2tp-1.20.8.tar.xz
+/NetworkManager-l2tp-1.20.10.tar.xz
+/NetworkManager-l2tp-1.20.14.tar.xz
+/NetworkManager-l2tp-1.20.16.tar.xz
diff --git a/NetworkManager-l2tp.spec b/NetworkManager-l2tp.spec
index 150fc28..089a327 100644
--- a/NetworkManager-l2tp.spec
+++ b/NetworkManager-l2tp.spec
@@ -6,13 +6,13 @@
 
 Summary:   NetworkManager VPN plugin for L2TP and L2TP/IPsec
 Name:      NetworkManager-l2tp
-Version:   1.20.8
+Version:   1.20.16
 Release:   1%{?dist}
-License:   GPLv2+
+License:   GPL-2.0-or-later
 URL:       https://github.com/nm-l2tp/NetworkManager-l2tp
 Source:    https://github.com/nm-l2tp/NetworkManager-l2tp/releases/download/%{version}/%{name}-%{version}.tar.xz
 
-%global ppp_version %(sed -n 's/^#define\\s*VERSION\\s*"\\([^\\s]*\\)"$/\\1/p' %{_includedir}/pppd/patchlevel.h 2>/dev/null | grep . || echo bad)
+%global ppp_version %(pkg-config --modversion pppd 2>/dev/null || sed -n 's/^#define\\s*VERSION\\s*"\\([^\\s]*\\)"$/\\1/p' %{_includedir}/pppd/patchlevel.h 2>/dev/null | grep . || echo bad)
 
 BuildRequires: make
 BuildRequires: gcc
@@ -20,7 +20,9 @@ BuildRequires: glib2-devel
 BuildRequires: gtk3-devel
 BuildRequires: NetworkManager-libnm-devel >= 1:1.20.0
 BuildRequires: libnma-devel >= 1.8.0
-BuildRequires: ppp-devel
+BuildRequires: pkgconfig
+BuildRequires: ppp-devel >= 2.4.5
+BuildRequires: autoconf automake
 BuildRequires: libtool gettext
 BuildRequires: libsecret-devel
 BuildRequires: openssl-devel >= 1:1.1.0
@@ -52,7 +54,7 @@ This package contains software for integrating L2TP and L2TP over
 IPsec VPN support with the NetworkManager (GNOME files).
 
 %prep
-%setup -q
+%autosetup -p1
 
 %build
 if [ ! -f configure ]; then
@@ -116,6 +118,35 @@ exit 0
 %endif
 
 %changelog
+* Sat May 18 2024 Douglas Kosovic <doug@uq.edu.au> - 1.20.16-1
+- Updated to 1.20.16 release
+
+* Sun Apr 14 2024 Douglas Kosovic <doug@uq.edu.au> - 1.20.14-1
+- Updated to 1.20.14 release
+
+* Mon Jan 22 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.20.10-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
+
+* Fri Jan 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.20.10-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
+
+* Fri Nov 03 2023 Íñigo Huguet <ihuguet@redhat.com> - 1.20.10-3
+- Migrated to SPDX license
+
+* Wed Jul 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.20.10-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
+
+* Mon May 01 2023 Douglas Kosovic <doug@uq.edu.au> - 1.20.10-1
+- Updated to 1.20.10 release
+- Remove redundant ppp related patches
+- Use ppp_version macro from NetworkManager
+
+* Tue Apr 18 2023 Adam Williamson <awilliam@redhat.com> - 1.20.8-3
+- Rebuild for new ppp
+
+* Wed Jan 18 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.20.8-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild
+
 * Fri Dec 30 2022 Douglas Kosovic <doug@uq.edu.au> - 1.20.8-1
 - Updated to 1.20.8 release
 - Added conditional recommends for NetworManager-l2tp-gnome and plasma-nm-l2tp
diff --git a/sources b/sources
index e831438..a834229 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (NetworkManager-l2tp-1.20.8.tar.xz) = 6ed2ab401821878bf775a27d43e540acce0ea6504a1a4bac436164776ef9e0eacef7963f0362691ef4ad7304e30e2c3199ba4fb41e24918b83aab88b34f7bb6a
+SHA512 (NetworkManager-l2tp-1.20.16.tar.xz) = d1a8364bae0116d556e1b554846df4efa415c0b84fa667181daae50ea706f7f62fa016290c35985667e9bda7ac237198575083dc816c05f16d6ac997da02aa7d