diff --git a/InsightToolkit-4.10.0.tar.xz b/InsightToolkit-4.10.0.tar.xz
deleted file mode 100644
index 35014f8..0000000
--- a/InsightToolkit-4.10.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:ea0011fc99a6303427b236c3ceaf54688224350ce1a216b64c9771ab3194b15f
-size 11717872
diff --git a/InsightToolkit-4.12.2.tar.xz b/InsightToolkit-4.12.2.tar.xz
new file mode 100644
index 0000000..6a63b81
--- /dev/null
+++ b/InsightToolkit-4.12.2.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5cd89d3b302e8518397c873a889adb3da4edda2314aae7258d7a200057af89e3
+size 12247552
diff --git a/doubleconv.patch b/doubleconv.patch
deleted file mode 100644
index 8483d44..0000000
--- a/doubleconv.patch
+++ /dev/null
@@ -1,11 +0,0 @@
-diff -ruN InsightToolkit-4.10.0.orig/Modules/Core/Common/src/CMakeLists.txt InsightToolkit-4.10.0/Modules/Core/Common/src/CMakeLists.txt
---- InsightToolkit-4.10.0.orig/Modules/Core/Common/src/CMakeLists.txt	2016-05-26 18:32:22.000000000 +0300
-+++ InsightToolkit-4.10.0/Modules/Core/Common/src/CMakeLists.txt	2016-10-02 12:41:04.693983157 +0300
-@@ -135,6 +135,7 @@
- add_library( ITKCommon ${ITK_LIBRARY_BUILD_TYPE} ${ITKCommon_SRCS})
- 
- itk_module_link_dependencies()
-+include_directories( /usr/include/double-conversion )
- target_link_libraries(ITKCommon LINK_PUBLIC itksys ITKVNLInstantiation)
- 
- if(UNIX)
diff --git a/insighttoolkit.changes b/insighttoolkit.changes
index b1b063b..7e75c66 100644
--- a/insighttoolkit.changes
+++ b/insighttoolkit.changes
@@ -1,3 +1,14 @@
+-------------------------------------------------------------------
+Mon Nov 20 12:32:06 UTC 2017 - guillaume@opensuse.org
+
+- Change group from 'Development/Libraries' to 'Development/Libraries/C and C++'
+
+-------------------------------------------------------------------
+Mon Nov 20 09:58:51 UTC 2017 - guillaume@opensuse.org
+
+- Update to 4.12.2 (Fix Tumbleweed build)
+- Remove doubleconv.patch
+
 -------------------------------------------------------------------
 Sun Oct  2 11:00:00 UTC 2016 - tzotsos@opensuse.org
 
diff --git a/insighttoolkit.spec b/insighttoolkit.spec
index 0d0fb4c..3e3f537 100644
--- a/insighttoolkit.spec
+++ b/insighttoolkit.spec
@@ -19,17 +19,17 @@
 
 %define tarname InsightToolkit
 Name:           insighttoolkit
-Version:        4.10.0
+Version:        4.12.2
 Release:        0
 Summary:        Insight Segmentation and Registration Toolkit
 License:        Apache-2.0
-Group:          Development/Libraries
+Group:          Development/Libraries/C and C++
 Url:            http://www.itk.org
-Source0:        http://sourceforge.net/projects/itk/files/itk/4.10/%{tarname}-%{version}.tar.xz
+Source0:        http://sourceforge.net/projects/itk/files/itk/4.12/%{tarname}-%{version}.tar.xz
 Patch0:         nrrdio-linking.patch
-Patch1:         doubleconv.patch
-Patch2:         dcmtk-cmake.patch
+Patch1:         dcmtk-cmake.patch
 BuildRequires:  cmake >= 2.8.0
+BuildRequires:  dcmtk
 BuildRequires:  dcmtk-devel
 BuildRequires:  fdupes
 BuildRequires:  fftw3-devel
@@ -45,6 +45,12 @@ BuildRequires:  libtiff-devel
 BuildRequires:  python-devel
 BuildRequires:  sed
 BuildRequires:  swig
+%if 0%{suse_version} > 1320
+# Indirect DCMTK dep. Should DCMTK be fixed?
+# tcpd-devel is needed for libwrap.so on Tumbleweed (> Leap 42.3)
+BuildRequires:  tcpd-devel
+BuildRequires:  libnsl-devel
+%endif
 BuildRequires:  vtk-devel
 BuildRequires:  xz
 BuildRequires:  zlib-devel
@@ -56,7 +62,7 @@ an extensive suite of software tools for image analysis.
 
 %package devel
 Summary:        Development files for ITK
-Group:          Development/Libraries
+Group:          Development/Libraries/C and C++
 Requires:       dcmtk-devel
 Requires:       fftw3-devel
 Requires:       fftw3-threads-devel
@@ -88,7 +94,6 @@ analysis..
 %setup -q -n %{tarname}-%{version}
 %patch0 -p1
 %patch1 -p1
-%patch2 -p1
 
 %build
 %cmake \
@@ -110,8 +115,6 @@ analysis..
   -DITK_USE_SYSTEM_TIFF:BOOL=ON \
   -DITK_USE_SYSTEM_VXL:BOOL=OFF \
   -DITK_USE_SYSTEM_ZLIB:BOOL=ON \
-  -DITK_USE_SYSTEM_GCCXML:BOOL=OFF \
-  -DITK_USE_SYSTEM_SWIG:BOOL=ON \
   -DITK_USE_SYSTEM_EXPAT:BOOL=ON \
   -DModule_ITKDCMTK:BOOL=ON \
   -DModule_ITKIOPhilipsREC:BOOL=OFF \
@@ -123,11 +126,6 @@ analysis..
   -DModule_ITKDeprecated:BOOL=OFF \
   -DITKV3_COMPATIBILITY:BOOL=ON \
   -DVCL_INCLUDE_CXX_0X:BOOL=ON \
-  -DITK_WRAP_DIMS="2;3;4" \
-  -DITK_WRAP_double:BOOL=ON \
-  -DITK_WRAP_vector_double:BOOL=ON \
-  -DITK_WRAP_covariant_vector_double:BOOL=ON \
-  -DITK_WRAP_complex_double:BOOL=ON \
   -DITK_WRAPPING:BOOL=OFF \
   -DITK_WRAP_PYTHON:BOOL=OFF \
   -DCMAKE_BUILD_TYPE:STRING="Release"
@@ -141,9 +139,9 @@ make VERBOSE=1 %{?_smp_mflags}
 %if "%{_lib}" == "lib64"
 mkdir -p %{buildroot}%{_libdir}
 mv %{buildroot}%{_libexecdir}/* %{buildroot}%{_libdir}/
-sed -i 's|/lib/|/lib64/|g' %{buildroot}%{_libdir}/cmake/ITK-4.10/ITKConfig.cmake
-sed -i 's|/lib/|/lib64/|g' %{buildroot}%{_libdir}/cmake/ITK-4.10/ITKTargets.cmake
-sed -i 's|/lib/|/lib64/|g' %{buildroot}%{_libdir}/cmake/ITK-4.10/ITKTargets-release.cmake
+sed -i 's|/lib/|/lib64/|g' %{buildroot}%{_libdir}/cmake/ITK-4.12/ITKConfig.cmake
+sed -i 's|/lib/|/lib64/|g' %{buildroot}%{_libdir}/cmake/ITK-4.12/ITKTargets.cmake
+sed -i 's|/lib/|/lib64/|g' %{buildroot}%{_libdir}/cmake/ITK-4.12/ITKTargets-release.cmake
 %endif
 rm -rf %{buildroot}%{_libexecdir}/debug