diff --git a/project/bundles/3rdparty/ext_opencv/CMakeLists.txt b/project/bundles/3rdparty/ext_opencv/CMakeLists.txt
index 8c88d265e1..efd3356d1e 100644
--- a/project/bundles/3rdparty/ext_opencv/CMakeLists.txt
+++ b/project/bundles/3rdparty/ext_opencv/CMakeLists.txt
@@ -1,163 +1,163 @@
 # Script to build OpenCV for digiKam bundle.
 #
 # Copyright (c) 2015-2020 by Gilles Caulier  <caulier dot gilles at gmail dot com>
 #
 # Redistribution and use is allowed according to the terms of the BSD license.
 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
 #
 
 set(EXTPREFIX_opencv "${EXTPREFIX}" )
 
 set(Opencv_Conf -DBUILD_EXAMPLES=OFF
                 -DBUILD_TESTS=OFF
                 -DBUILD_DOCS=OFF
                 -DBUILD_PERF_TESTS=OFF
                 -DBUILD_NEW_PYTHON_SUPPORT=OFF
                 -DBUILD_ZLIB=OFF
                 -DOPENCV_BUILD_3RDPARTY_LIBS=OFF
                 -DINSTALL_C_EXAMPLES=OFF
                 -DINSTALL_PYTHON_EXAMPLES=OFF
                 -DBUILD_opencv_core=ON
                 -DBUILD_opencv_imgproc=ON
                 -DBUILD_opencv_imgcodecs=ON
                 -DBUILD_opencv_objdetect=ON
                 -DBUILD_opencv_calib3d=ON
                 -DBUILD_opencv_features2d=ON
                 -DBUILD_opencv_flann=ON
                 -DBUILD_opencv_dnn=ON
                 -DBUILD_opencv_photo=OFF
                 -DBUILD_opencv_java=OFF
                 -DBUILD_opencv_java_bindings_generator=OFF
                 -DBUILD_opencv_js=OFF
                 -DBUILD_opencv_python2=OFF
                 -DBUILD_opencv_python3=OFF
                 -DBUILD_opencv_python_bindings_generator=OFF
                 -DBUILD_opencv_ml=OFF
                 -DBUILD_opencv_shape=OFF
                 -DBUILD_opencv_highgui=OFF
                 -DBUILD_opencv_superres=OFF
                 -DBUILD_opencv_stitching=OFF
                 -DBUILD_opencv_videostab=OFF
                 -DBUILD_opencv_videoio=OFF
                 -DBUILD_opencv_video=OFF
                 -DBUILD_opencv_apps=OFF
                 -DBUILD_opencv_gapi=OFF
                 -DWITH_PROTOBUF=ON
                 -DWITH_1394=OFF
                 -DWITH_VTK=OFF
                 -DWITH_DIRECTX=OFF
                 -DWITH_DSHOW=OFF
                 -DWITH_EIGEN=OFF
                 -DWITH_FFMPEG=OFF
                 -DWITH_GSTREAMER=OFF
                 -DWITH_GTK=OFF
                 -DWITH_IPP=OFF
                 -DWITH_JASPER=OFF
                 -DWITH_JPEG=OFF
                 -DWITH_MATLAB=OFF
                 -DWITH_OPENEXR=OFF
                 -DWITH_OPENNI=OFF
                 -DWITH_OPENMP=OFF
                 -DWITH_PNG=OFF
                 -DWITH_PVAPI=OFF
                 -DWITH_WIN32UI=OFF
                 -DWITH_QT=OFF
                 -DWITH_QUICKTIME=OFF
                 -DWITH_QT_OPENGL=OFF
                 -DWITH_TBB=OFF
                 -DWITH_TIFF=OFF
                 -DWITH_UNICAP=OFF
                 -DWITH_V4L=OFF
                 -DWITH_VFW=OFF
                 -DWITH_VIDEOINPUT=OFF
                 -DWITH_XINE=OFF
                 -DWITH_VA_INTEL=OFF
                 -DWITH_GPHOTO2=OFF
                 -DWITH_WEBP=OFF
                 -DWITH_IMGCODEC_HDR=OFF
                 -DWITH_IMGCODEC_SUNRASTER=OFF
                 -DWITH_IMGCODEC_PXM=OFF
                 -DWITH_CUDA=OFF
                 -DWITH_CUFFT=OFF
                 -DWITH_CUBLAS=OFF
                 -DWITH_NVCUVID=OFF
                 -DWITH_OPENCL=OFF
                 -DWITH_OPENCL_SVM=OFF
                 -DWITH_OPENCLAMDFFT=OFF
                 -DWITH_OPENCLAMDBLAS=OFF
                 -DCV_ENABLE_INTRINSICS=OFF
                 -DCV_DISABLE_OPTIMIZATION=ON
                 -DCV_TRACE=OFF
 )
 
 JoinListAsString("${Opencv_Conf}" " " BASH_OPTIONS)
 
 if(MINGW)
 
     ExternalProject_Add(ext_opencv
 
         URL https://github.com/opencv/opencv/archive/3.4.9.tar.gz
         URL_MD5 013936f80fa8536486f2ed8ef3808aa3
 
         CMAKE_ARGS -DCMAKE_BUILD_TYPE=${GLOBAL_BUILD_TYPE}
                    -DCMAKE_TOOLCHAIN_FILE=${MXE_TOOLCHAIN}
                    -DCMAKE_INSTALL_PREFIX=${MXE_INSTALL_PREFIX}
                    -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON
                    ${GLOBAL_PROFILE}
                    ${Opencv_Conf}
 
         UPDATE_COMMAND ""
         ALWAYS 0
     )
 
     ExternalProject_Add_step(ext_opencv before_download
 
         # Note : under MXE, in case of curl is not compiled with https support,
         # we cannot download the tarball as under Linux/MacOS.
 #        COMMAND wget -N https://github.com/opencv/opencv/archive/3.4.1.tar.gz -O ${EXTERNALS_DOWNLOAD_DIR}/3.4.1.zip
 #        DEPENDERS download
     )
 
 elseif(APPLE)
 
     ExternalProject_Add(ext_opencv
         DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
 
-        URL https://github.com/opencv/opencv/archive/3.4.8.tar.gz
-        URL_MD5 5aa8240c28c00a7dacdf51698e0ced77
+        URL https://github.com/opencv/opencv/archive/3.4.9.tar.gz
+        URL_MD5 013936f80fa8536486f2ed8ef3808aa3
 
         CONFIGURE_COMMAND cp ${CMAKE_CURRENT_SOURCE_DIR}/../../../../bootstrap.macports <SOURCE_DIR>/. &&
                           <SOURCE_DIR>/bootstrap.macports ${EXTPREFIX_opencv} RelWithDebInfo x86_64 "${BASH_OPTIONS}"
 
         BUILD_COMMAND cd <SOURCE_DIR>/build && $(MAKE)
 
         INSTALL_COMMAND cd <SOURCE_DIR>/build && make install/fast
 
         BUILD_IN_SOURCE 1
 
         UPDATE_COMMAND ""
         ALWAYS 0
     )
 
 else() #Linux
 
     ExternalProject_Add(ext_opencv
         DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
 
-        URL https://github.com/opencv/opencv/archive/3.4.8.tar.gz
-        URL_MD5 5aa8240c28c00a7dacdf51698e0ced77
+        URL https://github.com/opencv/opencv/archive/3.4.9.tar.gz
+        URL_MD5 013936f80fa8536486f2ed8ef3808aa3
 
         INSTALL_DIR ${EXTPREFIX_opencv}
 
         PATCH_COMMAND ${PATCH_COMMAND} -p1 -i ${CMAKE_CURRENT_SOURCE_DIR}/opencv-mmpause-linux.patch
 
         CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${EXTPREFIX_opencv}
                    -DCMAKE_BUILD_TYPE=${GLOBAL_BUILD_TYPE}
                    ${GLOBAL_PROFILE}
                    ${Opencv_Conf}
 
         UPDATE_COMMAND ""
         ALWAYS 0
     )
 
 endif()