diff --git a/.gitignore b/.gitignore
index 9a86337..bd7f990 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1 @@
-libgeotiff-1.2.5.tar.gz
-/libgeotiff-1.4.0.tar.gz
-/libgeotiff-1.4.3.tar.gz
+/libgeotiff-1.5.1.tar.gz
diff --git a/libgeotiff.spec b/libgeotiff.spec
index 6e837fd..a6eb774 100644
--- a/libgeotiff.spec
+++ b/libgeotiff.spec
@@ -1,12 +1,12 @@
-Name:      libgeotiff
-Version:   1.4.3
-Release:   4%{?dist}
-Summary:   GeoTIFF format library
-License:   MIT
-URL:       http://trac.osgeo.org/geotiff/
-Source:    http://download.osgeo.org/geotiff/%{name}/%{name}-%{version}.tar.gz
-BuildRequires: gcc-c++
-BuildRequires: libtiff-devel libjpeg-devel proj-devel >= 5.2.0 zlib-devel
+Name:		libgeotiff
+Version:	1.5.1
+Release:	1%{?dist}
+Summary:	GeoTIFF format library
+License:	MIT
+URL:		http://trac.osgeo.org/geotiff/
+Source:		http://download.osgeo.org/geotiff/%{name}/%{name}-%{version}.tar.gz
+BuildRequires:	gcc-c++
+BuildRequires:	libtiff-devel libjpeg-devel proj-devel >= 6.2.0 zlib-devel
 
 %description
 GeoTIFF represents an effort by over 160 different remote sensing,
@@ -15,9 +15,9 @@ to establish a TIFF based interchange format for georeferenced
 raster imagery.
 
 %package devel
-Summary: Development library and header for the GeoTIFF file format library
-Requires: pkgconfig libtiff-devel
-Requires: %{name}%{?_isa} = %{version}-%{release}
+Summary:	Development library and header for the GeoTIFF file format library
+Requires:	pkgconfig libtiff-devel
+Requires:	%{name}%{?_isa} = %{version}-%{release}
 
 %description devel
 The GeoTIFF library provides support for development of geotiff image format.
@@ -27,12 +27,12 @@ The GeoTIFF library provides support for development of geotiff image format.
 
 %build
 %configure \
-        --prefix=%{_prefix} \
-        --includedir=%{_includedir}/%{name}/ \
-        --with-proj               \
-        --with-jpeg               \
-        --with-zip                \
-        --disable-static
+	--prefix=%{_prefix}	\
+	--includedir=%{_includedir}/%{name}/	\
+	--with-proj		\
+	--with-jpeg		\
+	--with-zip		\
+	--disable-static
 
 sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' libtool
 sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
@@ -40,7 +40,7 @@ sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
 %make_build %{?_smp_mflags}
 
 %install
-make install DESTDIR=%{buildroot} INSTALL="install -p"
+%{__make} install DESTDIR=%{buildroot} INSTALL="install -p"
 
 # install pkgconfig file
 cat > %{name}.pc <<EOF
@@ -56,12 +56,11 @@ Libs: -L\${libdir} -lgeotiff
 Cflags: -I\${includedir}
 EOF
 
-mkdir -p %{buildroot}%{_libdir}/pkgconfig/
-install -p -m 644 %{name}.pc %{buildroot}%{_libdir}/pkgconfig/
+%{__mkdir} -p %{buildroot}%{_libdir}/pkgconfig/
+%{__install} -p -m 644 %{name}.pc %{buildroot}%{_libdir}/pkgconfig/
 
 #clean up junks
-rm -fv %{buildroot}%{_libdir}/lib*.la
-echo  >> %{buildroot}%{_datadir}/epsg_csv/codes.csv
+%{__rm} -fv %{buildroot}%{_libdir}/lib*.la
 
 %files
 %license LICENSE
@@ -69,18 +68,19 @@ echo  >> %{buildroot}%{_datadir}/epsg_csv/codes.csv
 %{_bindir}/applygeo
 %{_bindir}/geotifcp
 %{_bindir}/listgeo
-%{_libdir}/%{name}.so.2*
+%{_libdir}/%{name}.so.5*
 %{_mandir}/man1/*.1*
-%dir %{_datadir}/epsg_csv
-%{_datadir}/epsg_csv/*.csv
 
 %files devel
 %{_includedir}/%{name}
 %{_libdir}/%{name}.so
 %{_libdir}/pkgconfig/%{name}.pc
-%{_datadir}/epsg_csv/*.py
 
 %changelog
+%changelog
+* Wed Sep 4 2019 Devrim Gündüz <devrim@gunduz.org> - 1.5.1-1
+- Update to 1.5.1
+
 * Thu Jul 25 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.4.3-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
 
diff --git a/sources b/sources
index 42d917f..2c94572 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libgeotiff-1.4.3.tar.gz) = 0d0db959a55135ad6989b6dab37e0da83b33ab57a7e92d45d459d954c3ece452dfa1202033f048d94d13d0c09a3d397aa138d9b0ff949d11e0740f6188f011b5
+SHA512 (libgeotiff-1.5.1.tar.gz) = 6599ec89dd39d975ba389584778dd084ded628d3304b302e3af25bb7d156cf583c56b52f1c89c253b041df43f99d6893190ee1556398dab1ba044f12ef8b8dc1