diff --git a/CMakeExternals/DCMTK.cmake b/CMakeExternals/DCMTK.cmake
index 9a510f85..fdc7265e 100644
--- a/CMakeExternals/DCMTK.cmake
+++ b/CMakeExternals/DCMTK.cmake
@@ -33,8 +33,8 @@ if(NOT DEFINED DCMTK_DIR AND NOT ${CMAKE_PROJECT_NAME}_USE_SYSTEM_${proj})
     )
 
   ExternalProject_SetIfNotDefined(
-    ${proj}_REVISION_TAG
-    "patched-DCMTK-3.6.6_20210115"
+    ${proj}_GIT_TAG
+    "ea07125078cd097245867a71d8fba8b36fd92878" # patched-DCMTK-3.6.8_20241024
     QUIET
     )
 
diff --git a/CMakeExternals/ITK.cmake b/CMakeExternals/ITK.cmake
index 1981f6dd..19210a8a 100644
--- a/CMakeExternals/ITK.cmake
+++ b/CMakeExternals/ITK.cmake
@@ -33,7 +33,7 @@ if(NOT DEFINED ITK_DIR AND NOT ${CMAKE_PROJECT_NAME}_USE_SYSTEM_${proj})
 
   ExternalProject_SetIfNotDefined(
     ${proj}_REVISION_TAG
-    "be914a8b57b581735f2655098431dab61ded01c5"
+    "29b78d73c81d6c00c393416598d16058704c535c"
     QUIET
     )
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 69335f25..a6cd6c20 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.5.0)
 set(_msg "Setting C++ standard")
 message(STATUS "${_msg}")
 if(NOT DEFINED CMAKE_CXX_STANDARD)
-  set(CMAKE_CXX_STANDARD 14)
+  set(CMAKE_CXX_STANDARD 17)
 endif()
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)