diff --git a/CMake/External_ITK.cmake b/CMake/External_ITK.cmake
index 17d7a5a8..b70fbe17 100644
--- a/CMake/External_ITK.cmake
+++ b/CMake/External_ITK.cmake
@@ -58,6 +58,14 @@ if (fletch_ENABLE_VXL)
   list(APPEND ITK_DEPENDS VXL)
 endif()
 
+if (fletch_ENABLE_OpenCV)
+  list (APPEND itk_cmake_args
+    -DModule_ITKVideoBridgeOpenCV:BOOL=ON
+    -DOpenCV_DIR:PATH=${OpenCV_ROOT}
+    )
+  list(APPEND ITK_DEPENDS OpenCV)
+endif()
+
 ExternalProject_Add(ITK
   DEPENDS ${ITK_DEPENDS}
   URL ${ITK_file}
@@ -68,6 +76,8 @@ ExternalProject_Add(ITK
     ${COMMON_CMAKE_ARGS}
     ${ITK_IMG_ARGS}
     ${itk_cmake_args}
+    -DModule_PhaseSymmetry:BOOL=ON
+    -DModule_AnisotropicDiffusionLBR:BOOL=ON
 )
 
 fletch_external_project_force_install(PACKAGE ITK)
diff --git a/CMake/External_VXL.cmake b/CMake/External_VXL.cmake
index cf31b442..495e02e0 100644
--- a/CMake/External_VXL.cmake
+++ b/CMake/External_VXL.cmake
@@ -47,16 +47,16 @@ add_package_dependency(
   )
 
 set(VXL_ARGS_CONTRIB
-  -DBUILD_CONTRIB:BOOL=ON
-  -DBUILD_RPL:BOOL=ON
-  -DBUILD_BRL:BOOL=OFF
-  -DBUILD_MUL_TOOLS:BOOL=OFF
-  -DBUILD_PRIP:BOOL=OFF
+  -DVXL_BUILD_CONTRIB:BOOL=ON
+  -DVXL_BUILD_RPL:BOOL=ON
+  -DVXL_BUILD_BRL:BOOL=OFF
+  -DVXL_BUILD_MUL_TOOLS:BOOL=OFF
+  -DVXL_BUILD_PRIP:BOOL=OFF
   )
 
 # Handle FFMPEG disable flag
 list(APPEND VXL_ARGS_VIDL
-  -DBUILD_CORE_VIDEO:BOOL=ON
+  -DVXL_BUILD_CORE_VIDEO:BOOL=ON
   )
 if(fletch_ENABLE_FFmpeg)
   add_package_dependency(
@@ -105,20 +105,21 @@ ExternalProject_Add(VXL
     ${VXL_ARGS_V3P}
     ${VXL_EXTRA_CMAKE_CXX_FLAGS}
     ${COMMON_CMAKE_ARGS}
-    -DBUILD_EXAMPLES:BOOL=OFF
     -DBUILD_TESTING:BOOL=OFF
-    -DBUILD_DOCUMENTATION:BOOL=OFF
-    -DBUILD_FOR_VXL_DASHBOARD:BOOL=ON
-    -DBUILD_CORE_PROBABILITY:BOOL=ON
-    -DBUILD_CORE_GEOMETRY:BOOL=ON
-    -DBUILD_CORE_NUMERICS:BOOL=ON
-    -DBUILD_CORE_IMAGING:BOOL=ON
-    -DBUILD_CORE_SERIALISATION:BOOL=ON
-    -DBUILD_BRL:BOOL=OFF
-    -DBUILD_GEL:BOOL=OFF
-    -DBUILD_MUL:BOOL=OFF
-    -DBUILD_MUL_TOOLS:BOOL=OFF
-    -DBUILD_TBL:BOOL=OFF
+    -DVXL_BUILD_EXAMPLES:BOOL=OFF
+    -DVXL_BUILD_DOCUMENTATION:BOOL=OFF
+    -DVXL_BUILD_FOR_VXL_DASHBOARD:BOOL=ON
+    -DVXL_BUILD_CORE_PROBABILITY:BOOL=ON
+    -DVXL_BUILD_CORE_GEOMETRY:BOOL=ON
+    -DVXL_BUILD_CORE_NUMERICS:BOOL=ON
+    -DVXL_BUILD_CORE_IMAGING:BOOL=ON
+    -DVXL_BUILD_CORE_SERIALISATION:BOOL=ON
+    -DVXL_BUILD_BRL:BOOL=OFF
+    -DVXL_BUILD_GEL:BOOL=OFF
+    -DVXL_BUILD_MUL:BOOL=OFF
+    -DVXL_BUILD_MUL_TOOLS:BOOL=OFF
+    -DVXL_BUILD_TBL:BOOL=OFF
+    -DVXL_BUILD_OXL:BOOL=OFF
     -DVXL_USE_DCMTK:BOOL=OFF
     -DJPEG_LIBRARY:FILEPATH=${JPEG_LIBRARY}
     -DJPEG_INCLUDE_DIR:PATH=${JPEG_INCLUDE_DIR}
diff --git a/CMake/fletch-tarballs.cmake b/CMake/fletch-tarballs.cmake
index 96373756..6c993797 100644
--- a/CMake/fletch-tarballs.cmake
+++ b/CMake/fletch-tarballs.cmake
@@ -429,17 +429,16 @@ endif()
 list(APPEND fletch_external_sources VTK)
 
 # VXL
-set(VXL_version "0bb0ca92867408caec298cef05412ed85c6d56b7")
+set(VXL_version "ecc0202f4f9eccaffa89b061e9567a20597fd10e")
 set(VXL_url "https://github.com/vxl/vxl/archive/${VXL_version}.zip")
-set(VXL_md5 "287536149942081666a2f9a3be87a666")
+set(VXL_md5 "43f59314889597ad5e84da9d023f0ee7")
 set(VXL_dlname "vxl-${VXL_version}.zip")
 list(APPEND fletch_external_sources VXL)
 
 # ITK
-set(ITK_version 5.0)
-set(ITK_minor b01)
-set(ITK_url "https://github.com/InsightSoftwareConsortium/ITK/archive/v${ITK_version}${ITK_minor}.zip")
-set(ITK_md5 "3a93ba69d3bf05258054806fab742611")
+set(ITK_version "fc688e7a2c89967e3d6cbb779f87ec37a4e4750b")
+set(ITK_url "https://github.com/InsightSoftwareConsortium/ITK/archive/${ITK_version}.tar.gz")
+set(ITK_md5 "8f0965e5ac7828a273dfff8d3b81ff9a")
 set(ITK_experimental TRUE)
 list(APPEND fletch_external_sources ITK)