diff --git a/libwebp-0.3.0.tar.xz b/libwebp-0.3.0.tar.xz
deleted file mode 100644
index f552980..0000000
--- a/libwebp-0.3.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d9d64c309e07e8349c01958998148ff6408fbc9739bb4a02d4a6767840a3a95f
-size 541768
diff --git a/libwebp-0.3.1.tar.gz b/libwebp-0.3.1.tar.gz
new file mode 100644
index 0000000..c19dfcf
--- /dev/null
+++ b/libwebp-0.3.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b37932c625322a69fe4e9b88884b5c7aed2b3eaf9fd5e5b480aee339a92e6ee7
+size 844799
diff --git a/libwebp.changes b/libwebp.changes
index 6e78208..46f8514 100644
--- a/libwebp.changes
+++ b/libwebp.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Wed Jun 26 10:22:32 UTC 2013 - jengelh@inai.de
+
+- Update to new upstream release 0.3.1
+* Add incremental decoding support for images containing
+  ALPH and ICCP chunks.
+- Enable libwebpmux, libwebpdemux
+
 -------------------------------------------------------------------
 Tue Apr 16 09:49:31 UTC 2013 - jengelh@inai.de
 
diff --git a/libwebp.spec b/libwebp.spec
index 31c96ed..fd317b9 100644
--- a/libwebp.spec
+++ b/libwebp.spec
@@ -18,22 +18,23 @@
 
 Name:           libwebp
 %define lname	libwebp4
-Version:        0.3.0
+Version:        0.3.1
 Release:        0
 Url:            https://developers.google.com/speed/webp/
 Summary:        Library and tools for the WebP graphics format
 License:        BSD-3-Clause
-Group:          System/Libraries
+Group:          Development/Libraries/C and C++
 
-#DL-URL:	https://webp.googlecode.com/files/libwebp-0.3.0.tar.gz
-Source:         %name-%version.tar.xz
+#Git-Clone:	http://git.chromium.org/webm/libwebp.git
+#DL-URL:	https://webp.googlecode.com/files/libwebp-0.3.1.tar.gz
+Source:         https://webp.googlecode.com/files/%name-%version.tar.gz
 Source2:        baselibs.conf
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
+BuildRequires:  giflib-devel
 BuildRequires:  libjpeg-devel
 BuildRequires:  libpng-devel
 BuildRequires:  libtiff-devel
 BuildRequires:  pkgconfig
-BuildRequires:  xz
 
 %description
 WebP is an image format that does lossy compression of digital
@@ -56,21 +57,41 @@ container based on RIFF. Webmasters, web developers and browser
 developers can use WebP to compress, archive and distribute digital
 images more efficiently.
 
-%package -n %lname
+%package -n libwebp4
 Summary:        Library for the WebP graphics format
 Group:          System/Libraries
 
-%description -n %lname
+%description -n libwebp4
 WebP is an image format that does lossy compression of digital
 photographic images. WebP consists of a codec based on VP8, and a
 container based on RIFF. Webmasters, web developers and browser
 developers can use WebP to compress, archive and distribute digital
 images more efficiently.
 
+%package -n libwebpdemux0
+Summary:        Library for extraction of data and images from WebP container files
+Group:          System/Libraries
+
+%description -n libwebpdemux0
+The WebP Demux API enables extraction of images and extended format
+data from WebP files. This API currently supports reading of XMP/EXIF
+metadata, ICC profile and animated images.
+
+%package -n libwebpmux0
+Summary:        Library for reading/adding data to WebP container files
+Group:          System/Libraries
+
+%description -n libwebpmux0
+The WebP Mux API contains methods for adding data to and reading data
+from WebP files. This API currently supports XMP/EXIF metadata, ICC
+profile and animation.
+
 %package devel
 Summary:        Development files for libwebp, a library for the WebP format
 Group:          Development/Libraries/C and C++
-Requires:       %lname = %version
+Requires:       libwebp4 = %version
+Requires:       libwebpdemux0 = %version
+Requires:       libwebpmux0 = %version
 
 %description devel
 WebP is an image format that does lossy compression of digital
@@ -83,7 +104,7 @@ images more efficiently.
 %setup -q
 
 %build
-%configure --disable-static
+%configure --disable-static --enable-libwebpmux --enable-libwebpdemux
 make %{?_smp_mflags}
 
 %install
@@ -91,23 +112,34 @@ b="%buildroot";
 make install DESTDIR="$b";
 rm -f "$b/%_libdir"/*.la;
 
-%post -n %lname -p /sbin/ldconfig
-
-%postun -n %lname -p /sbin/ldconfig
+%post   -n libwebp4 -p /sbin/ldconfig
+%postun -n libwebp4 -p /sbin/ldconfig
+%post   -n libwebpdemux0 -p /sbin/ldconfig
+%postun -n libwebpdemux0 -p /sbin/ldconfig
+%post   -n libwebpmux0 -p /sbin/ldconfig
+%postun -n libwebpmux0 -p /sbin/ldconfig
 
 %files -n libwebp-tools
 %defattr(-,root,root)
 %_bindir/*
 %_mandir/man*/*
 
-%files -n %lname
+%files -n libwebp4
 %defattr(-,root,root)
 %_libdir/libwebp.so.4*
 
+%files -n libwebpdemux0
+%defattr(-,root,root)
+%_libdir/libwebpdemux.so.0*
+
+%files -n libwebpmux0
+%defattr(-,root,root)
+%_libdir/libwebpmux.so.0*
+
 %files devel
 %defattr(-,root,root)
-%_libdir/libwebp.so
-%_includedir/webp
-%_libdir/pkgconfig/libwebp.pc
+%_libdir/libwebp*.so
+%_includedir/webp/
+%_libdir/pkgconfig/libwebp*.pc
 
 %changelog