diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 45a8f2e0f..951f92a70 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -4,7 +4,7 @@ if(itk-module)
     return()
   endif()
 endif()
-find_package(ITK 5.2.0 REQUIRED)
+find_package(ITK 6 REQUIRED)
 
 # To avoid linker issues.
 # Module_ITKVtkGlue is true when building inside ITK
diff --git a/src/Core/Common/FilterAndParallelizeImageRegion/CMakeLists.txt b/src/Core/Common/FilterAndParallelizeImageRegion/CMakeLists.txt
index 9eb6f8b0d..2d32a6e82 100644
--- a/src/Core/Common/FilterAndParallelizeImageRegion/CMakeLists.txt
+++ b/src/Core/Common/FilterAndParallelizeImageRegion/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.22.1)
 
 project(FilterAndParallelizeImageRegion)
 
-find_package(ITK 5.0 REQUIRED)
+find_package(ITK 6 REQUIRED)
 
 add_executable(${PROJECT_NAME} Code.cxx)
 target_link_libraries(
diff --git a/src/Core/Common/UseParallelizeImageRegion/CMakeLists.txt b/src/Core/Common/UseParallelizeImageRegion/CMakeLists.txt
index 41aef7259..aed8c5751 100644
--- a/src/Core/Common/UseParallelizeImageRegion/CMakeLists.txt
+++ b/src/Core/Common/UseParallelizeImageRegion/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.22.1)
 
 project(UseParallelizeImageRegion)
 
-find_package(ITK 5.0 REQUIRED)
+find_package(ITK 6 REQUIRED)
 
 add_executable(${PROJECT_NAME} Code.cxx)
 target_link_libraries(
diff --git a/src/Filtering/ImageGradient/ApplyGradientRecursiveGaussian/CMakeLists.txt b/src/Filtering/ImageGradient/ApplyGradientRecursiveGaussian/CMakeLists.txt
index b4388916c..8b025ef53 100644
--- a/src/Filtering/ImageGradient/ApplyGradientRecursiveGaussian/CMakeLists.txt
+++ b/src/Filtering/ImageGradient/ApplyGradientRecursiveGaussian/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.22.1)
 
 project(ApplyGradientRecursiveGaussian)
 
-find_package(ITK 4.7.0 REQUIRED)
+find_package(ITK 6 REQUIRED)
 
 add_executable(${PROJECT_NAME} Code.cxx)
 target_link_libraries(