diff --git a/pngquant.spec b/pngquant.spec
index 968183c..2f8dd49 100644
--- a/pngquant.spec
+++ b/pngquant.spec
@@ -1,20 +1,21 @@
 %global libname libimagequant
 
-Name:		pngquant
-Version:	2.3.4
-Release:	1%{?dist}
-Summary:	PNG quantization tool for reducing image file size
-%{?el5:Group:	Applications/Multimedia}
+Name:       pngquant
+Version:    2.4.0.1
+Release:    1%{?dist}
+Summary:    PNG quantization tool for reducing image file size
+%{?el5:Group:   Applications/Multimedia}
 
-License:	BSD with advertising
+License:    BSD with advertising
 
-URL:		http://%{name}.org
-Source0:	https://github.com/pornel/pngquant/archive/%{name}-%{version}.tar.gz
+URL:        http://%{name}.org
+Source0:    http://github.srcurl.net/pornel/%{name}/%{version}/%{name}-%{version}.tar.gz
+#Source0:   https://github.com/pornel/%{name}/archive/%{name}-%{version}.tar.gz
 
-Patch0:		%{name}-2.3.2_fix-Makefile.patch
+Patch0:     %{name}-2.4.0_fix-Makefile.patch
 
 
-%{?el5:BuildRoot:	%(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)}
+%{?el5:BuildRoot:   %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)}
 BuildRequires:  libpng-devel%{?_isa} >= 1.2.46-1
 BuildRequires:  zlib-devel%{?_isa} >= 1.2.3-1
 BuildRequires:  gcc%{?_isa} >= 4.2-1
@@ -32,8 +33,8 @@ their 24/32-bit version. %{name} uses the median cut algorithm.
 
 
 %package -n %{libname}
-Summary:	Small, portable C lib for HQ conversion of RGBA to 8-bit indexed-color
-%{?el5:Group:	System Environment/Libraries}
+Summary:    Small, portable C lib for HQ conversion of RGBA to 8-bit indexed-color
+%{?el5:Group:   System Environment/Libraries}
 
 %description -n %{libname}
 %{libname} converts 24/32-bit RGBA PNG images to 8-bit palette with alpha
@@ -44,10 +45,10 @@ their 24/32-bit version. %{libname} uses the median cut algorithm.
 
 
 %package -n %{libname}-devel
-Summary:	Development files for %{libname}
-%{?el5:Group:	Development/Libraries}
+Summary:    Development files for %{libname}
+%{?el5:Group:   Development/Libraries}
 
-Requires:	%{libname} = %{version}-%{release}
+Requires:   %{libname} = %{version}-%{release}
 
 %description -n %{libname}-devel
 This package contains files for development with %{libname}.
@@ -77,23 +78,23 @@ make %{?_smp_mflags} PREFIX=%{_prefix}
 %{?el5:rm -rf %{buildroot}}
 
 mkdir -p %{buildroot}%{_includedir}/imagequant \
-	%{buildroot}%{_bindir} \
-	%{buildroot}%{_libdir} \
-	%{buildroot}%{_mandir}/man1
+    %{buildroot}%{_bindir} \
+    %{buildroot}%{_libdir} \
+    %{buildroot}%{_mandir}/man1
 
 make install DESTDIR=%{buildroot} PREFIX=%{_prefix}
 
 # install libimagequant
 install -pm 0755 lib/%{libname}.so.0 \
-	%{buildroot}%{_libdir}
+    %{buildroot}%{_libdir}
 ln -fs %{_libdir}/%{libname}.so.0 \
-	%{buildroot}%{_libdir}/%{libname}.so
+    %{buildroot}%{_libdir}/%{libname}.so
 install -pm 0644 lib/*.h \
-	%{buildroot}%{_includedir}/imagequant
+    %{buildroot}%{_includedir}/imagequant
 
 # install man-page for %%{name}
-install	-pm 0644 %{name}.1 \
-	%{buildroot}/%{_mandir}/man1/%{name}.1
+install -pm 0644 %{name}.1 \
+    %{buildroot}/%{_mandir}/man1/%{name}.1
 
 mkdir -p %{buildroot}/%{_bindir}
 make install PREFIX=%{_prefix} DESTDIR=%{buildroot}