diff --git a/.gitignore b/.gitignore
index 96b167b..6c437a7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /twolame-0.3.13.tar.gz
+/twolame-0.4.0.tar.gz
diff --git a/sources b/sources
index e50f31a..50a3a21 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (twolame-0.3.13.tar.gz) = 241ae5faebf05cb919959bb0545cb89e9b71cfb07f92a7118d864499ea4f0065ddaa646ab1482ffbcbca427d52c2436764074bd67fd19a1eb9979987f23163f7
+SHA512 (twolame-0.4.0.tar.gz) = cc594bc8d2322922280f915a3c0aa52540cca0350d6498bc96f3f60fd6e53f951e775ea015a44bdb29ec883b46b31a0e5483f6a5c188b02e30008289273c7d03
diff --git a/twolame.spec b/twolame.spec
index 9a88316..ec73cab 100644
--- a/twolame.spec
+++ b/twolame.spec
@@ -1,12 +1,12 @@
 Name:       twolame
-Version:    0.3.13
-Release:    21%{?dist}
+Version:    0.4.0
+Release:    1%{?dist}
 Summary:    Optimized MPEG Audio Layer 2 encoding library based on tooLAME
 # build-scripts/install-sh is MIT/X11, build-scripts/{libtool.m4, ltmain.sh} are GPLv2+
 License:    LGPLv2+
 URL:        http://www.twolame.org/
 
-Source: https://github.com/njh/%{name}/archive/refs/tags/%{version}.tar.gz#/%{name}-%{version}.tar.gz
+Source:     http://downloads.sourceforge.net/twolame/%{name}-%{version}.tar.gz
 
 BuildRequires:  autoconf
 BuildRequires:  automake
@@ -46,7 +46,9 @@ applications with TwoLAME.
 
 %build
 autoreconf -vif
-%configure --disable-static
+%configure \
+    --disable-static \
+    --enable-sndfile
 %make_build
 
 %install
@@ -61,12 +63,12 @@ rm -rf %{buildroot}%{_docdir}
 %endif
 
 %files
-%doc AUTHORS ChangeLog README TODO
-%license COPYING
+%doc AUTHORS ChangeLog NEWS README
 %{_bindir}/%{name}
 %{_mandir}/man1/%{name}.1*
 
 %files libs
+%license COPYING
 %{_libdir}/lib%{name}.so.*
 
 %files devel
@@ -76,6 +78,9 @@ rm -rf %{buildroot}%{_docdir}
 %{_includedir}/%{name}.h
 
 %changelog
+* Fri Aug 19 2022 Simone Caronni <negativo17@gmail.com> - 0.4.0-1
+- Update to 0.4.0.
+
 * Fri Aug 19 2022 Simone Caronni <negativo17@gmail.com> - 0.3.13-21
 - Clean up SPEC file.
 - Trim changelog.