diff --git a/CMakeExternals/Qwt-6.1.0.patch b/CMakeExternals/Qwt-6.1.0.patch
deleted file mode 100644
index 51124e995c..0000000000
--- a/CMakeExternals/Qwt-6.1.0.patch
+++ /dev/null
@@ -1,30 +0,0 @@
-diff -urNb qwt-6.1.0/src/qwt_transform.cpp Qwt-src/src/qwt_transform.cpp
---- qwt-6.1.0/src/qwt_transform.cpp	2013-05-30 17:18:27.000000000 +0200
-+++ Qwt-src/src/qwt_transform.cpp	2015-01-13 20:39:27.533871912 +0100
-@@ -15,10 +15,10 @@
- #endif
- 
- //! Smallest allowed value for logarithmic scales: 1.0e-150
--QT_STATIC_CONST_IMPL double QwtLogTransform::LogMin = 1.0e-150;
-+const double QwtLogTransform::LogMin = 1.0e-150;
- 
- //! Largest allowed value for logarithmic scales: 1.0e150
--QT_STATIC_CONST_IMPL double QwtLogTransform::LogMax = 1.0e150;
-+const double QwtLogTransform::LogMax = 1.0e150;
- 
- //! Constructor
- QwtTransform::QwtTransform()
-diff -urNb qwt-6.1.0/src/qwt_transform.h Qwt-src/src/qwt_transform.h
---- qwt-6.1.0/src/qwt_transform.h	2013-05-30 17:18:25.000000000 +0200
-+++ Qwt-src/src/qwt_transform.h	2015-01-13 20:39:27.533871912 +0100
-@@ -107,8 +107,8 @@
- 
-     virtual QwtTransform *copy() const;
- 
--    QT_STATIC_CONST double LogMin;
--    QT_STATIC_CONST double LogMax;
-+    static const double LogMin;
-+    static const double LogMax;
- };
- 
- /*!
diff --git a/CMakeExternals/Qwt.cmake b/CMakeExternals/Qwt.cmake
index b397f9e042..e14f51089a 100644
--- a/CMakeExternals/Qwt.cmake
+++ b/CMakeExternals/Qwt.cmake
@@ -1,62 +1,61 @@
 #-----------------------------------------------------------------------------
 # Qwt
 #-----------------------------------------------------------------------------
 
 if(MITK_USE_Qwt)
 
 # Sanity checks
 if(DEFINED Qwt_DIR AND NOT EXISTS ${Qwt_DIR})
   message(FATAL_ERROR "Qwt_DIR variable is defined but corresponds to non-existing directory")
 endif()
 
 set(proj Qwt)
 set(proj_DEPENDENCIES )
 set(${proj}_DEPENDS ${proj})
 
 if(NOT DEFINED ${proj}_DIR)
 
   set(patch_cmd ${CMAKE_COMMAND} -Dproj:STRING=${proj} -Dproj_target:STRING=qwt -P ${CMAKE_CURRENT_LIST_DIR}/GenerateDefaultCMakeBuildSystem.cmake)
   set(qt54patch_cmd ${CMAKE_COMMAND} -DTEMPLATE_FILE:FILEPATH=${MITK_SOURCE_DIR}/CMakeExternals/EmptyFileForPatching.dummy -P ${MITK_SOURCE_DIR}/CMakeExternals/PatchQwt-6.1.0.cmake)
 
   set(additional_cmake_args
   "-DQt5Svg_DIR:PATH=${Qt5Svg_DIR}"
   "-DQt5OpenGL_DIR:PATH=${Qt5OpenGL_DIR}"
   "-DQt5PrintSupport_DIR:PATH=${Qt5PrintSupport_DIR}"
   "-DQt5Concurrent_DIR:PATH=${Qt5Concurrent_DIR}"
   "-DQt5Designer_DIR:PATH=${Qt5_DIR}Designer"
   )
   if(CTEST_USE_LAUNCHERS)
     list(APPEND additional_cmake_args
       "-DCMAKE_PROJECT_${proj}_INCLUDE:FILEPATH=${CMAKE_ROOT}/Modules/CTestUseLaunchers.cmake"
     )
   endif()
 
   ExternalProject_Add(${proj}
      LIST_SEPARATOR ${sep}
-     URL ${MITK_THIRDPARTY_DOWNLOAD_PREFIX_URL}/qwt-6.1.0.tar.bz2
-     URL_MD5 aef0437b37f191067a6a9dc01c30ba64
-     PATCH_COMMAND ${PATCH_COMMAND} -N -p1 -i ${CMAKE_CURRENT_LIST_DIR}/Qwt-6.1.0.patch
-       COMMAND ${CMAKE_COMMAND} -Dproj=${proj} -Dproj_target:STRING=qwt -P ${CMAKE_CURRENT_LIST_DIR}/GenerateDefaultCMakeBuildSystem.cmake
+     URL ${MITK_THIRDPARTY_DOWNLOAD_PREFIX_URL}/qwt-6.1.5.tar.bz2
+     URL_MD5 d65582f99312796ed42c3be3208ed3db
+     PATCH_COMMAND ${CMAKE_COMMAND} -Dproj=${proj} -Dproj_target:STRING=qwt -P ${CMAKE_CURRENT_LIST_DIR}/GenerateDefaultCMakeBuildSystem.cmake
      CMAKE_GENERATOR ${gen}
      CMAKE_GENERATOR_PLATFORM ${gen_platform}
      CMAKE_ARGS
        ${ep_common_args}
        ${additional_cmake_args}
        ${qt_project_args}
      CMAKE_CACHE_ARGS
        ${ep_common_cache_args}
      CMAKE_CACHE_DEFAULT_ARGS
        ${ep_common_cache_default_args}
      DEPENDS ${proj_DEPENDENCIES}
     )
 
   set(${proj}_DIR ${ep_prefix})
   mitkFunctionInstallExternalCMakeProject(${proj})
 
 else()
 
   mitkMacroEmptyExternalProject(${proj} "${proj_DEPENDENCIES}")
 
 endif()
 
 endif()