diff --git a/.github/workflows/everything.yml b/.github/workflows/everything.yml
index 89c304de60..bf00d264b4 100644
--- a/.github/workflows/everything.yml
+++ b/.github/workflows/everything.yml
@@ -215,18 +215,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos10_15, macos11, macos11_12sdk]
+        os: [macos11, macos12]
         parallel: [serial]
         include:
-          - os: macos10_15
-            image: macos-10.15
-            compiler: xcode12_1_1
           - os: macos11
             image: macos-11
             compiler: xcode13_0
-          - os: macos11_12sdk
-            image: macos-11
-            compiler: xcode13_2_1
+          - os: macos12
+            image: macos-12
+            compiler: xcode13_4_1
 
     steps:
       - uses: actions/checkout@v3
diff --git a/scripts/ci/cmake-v2/ci-macos10_15-xcode12_1_1-mpi.cmake b/scripts/ci/cmake-v2/ci-macos10_15-xcode12_1_1-mpi.cmake
deleted file mode 100644
index f4ba0eeabf..0000000000
--- a/scripts/ci/cmake-v2/ci-macos10_15-xcode12_1_1-mpi.cmake
+++ /dev/null
@@ -1,23 +0,0 @@
-# Client maintainer: chuck.atkins@kitware.com
-set(ENV{CC}  clang)
-set(ENV{CXX} clang++)
-set(ENV{FC}  gfortran-11)
-
-set(dashboard_cache "
-ADIOS2_USE_Fortran:BOOL=ON
-ADIOS2_USE_MPI:BOOL=ON
-ADISO2_USE_Python:BOOL=ON
-
-CMAKE_C_FLAGS:STRING=-Wall
-CMAKE_CXX_FLAGS:STRING=-Wall
-CMAKE_Fortran_FLAGS:STRING=-Wall
-")
-
-set(ENV{MACOSX_DEPLOYMENT_TARGET} "10.15")
-set(CTEST_CMAKE_GENERATOR "Unix Makefiles")
-list(APPEND CTEST_UPDATE_NOTES_FILES "${CMAKE_CURRENT_LIST_FILE}")
-set(CTEST_TEST_ARGS
-  # Unclear why these tests currently die.  Disabling until it can be addressed.
-  EXCLUDE "Install.Make.*"
-)
-include(${CMAKE_CURRENT_LIST_DIR}/ci-common.cmake)
diff --git a/scripts/ci/cmake-v2/ci-macos10_15-xcode12_1_1-serial.cmake b/scripts/ci/cmake-v2/ci-macos10_15-xcode12_1_1-serial.cmake
deleted file mode 100644
index 4e4941032e..0000000000
--- a/scripts/ci/cmake-v2/ci-macos10_15-xcode12_1_1-serial.cmake
+++ /dev/null
@@ -1,23 +0,0 @@
-# Client maintainer: chuck.atkins@kitware.com
-set(ENV{CC}  clang)
-set(ENV{CXX} clang++)
-set(ENV{FC}  gfortran-11)
-
-set(dashboard_cache "
-ADIOS2_USE_Fortran:BOOL=ON
-ADIOS2_USE_MPI:BOOL=OFF
-ADISO2_USE_Python:BOOL=ON
-
-CMAKE_C_FLAGS:STRING=-Wall
-CMAKE_CXX_FLAGS:STRING=-Wall
-CMAKE_Fortran_FLAGS:STRING=-Wall
-")
-
-set(ENV{MACOSX_DEPLOYMENT_TARGET} "10.15")
-set(CTEST_CMAKE_GENERATOR "Unix Makefiles")
-list(APPEND CTEST_UPDATE_NOTES_FILES "${CMAKE_CURRENT_LIST_FILE}")
-set(CTEST_TEST_ARGS
-  # Unclear why these tests currently die.  Disabling until it can be addressed.
-  EXCLUDE "Install.Make.*"
-)
-include(${CMAKE_CURRENT_LIST_DIR}/ci-common.cmake)
diff --git a/scripts/ci/cmake-v2/ci-macos11-xcode13_0-mpi.cmake b/scripts/ci/cmake-v2/ci-macos11-xcode13_0-mpi.cmake
deleted file mode 100644
index 386650ef6e..0000000000
--- a/scripts/ci/cmake-v2/ci-macos11-xcode13_0-mpi.cmake
+++ /dev/null
@@ -1,23 +0,0 @@
-# Client maintainer: chuck.atkins@kitware.com
-set(ENV{CC}  clang)
-set(ENV{CXX} clang++)
-set(ENV{FC}  gfortran-11)
-
-set(dashboard_cache "
-ADIOS2_USE_Fortran:BOOL=ON
-ADIOS2_USE_MPI:BOOL=ON
-ADISO2_USE_Python:BOOL=ON
-
-CMAKE_C_FLAGS:STRING=-Wall
-CMAKE_CXX_FLAGS:STRING=-Wall
-CMAKE_Fortran_FLAGS:STRING=-Wall
-")
-
-set(ENV{MACOSX_DEPLOYMENT_TARGET} "11.3")
-set(CTEST_CMAKE_GENERATOR "Ninja")
-list(APPEND CTEST_UPDATE_NOTES_FILES "${CMAKE_CURRENT_LIST_FILE}")
-set(CTEST_TEST_ARGS
-  # Unclear why these tests currently die.  Disabling until it can be addressed.
-  EXCLUDE "Install.Make.*"
-)
-include(${CMAKE_CURRENT_LIST_DIR}/ci-common.cmake)
diff --git a/scripts/ci/cmake-v2/ci-macos11-xcode13_0-serial.cmake b/scripts/ci/cmake-v2/ci-macos11-xcode13_0-serial.cmake
index 821ac5357a..5e1bd36186 100644
--- a/scripts/ci/cmake-v2/ci-macos11-xcode13_0-serial.cmake
+++ b/scripts/ci/cmake-v2/ci-macos11-xcode13_0-serial.cmake
@@ -1,4 +1,4 @@
-# Client maintainer: chuck.atkins@kitware.com
+# Client maintainer: vicente.bolea@kitware.com
 set(ENV{CC}  clang)
 set(ENV{CXX} clang++)
 set(ENV{FC}  gfortran-11)
diff --git a/scripts/ci/cmake-v2/ci-macos11_12sdk-xcode13_2_1-mpi.cmake b/scripts/ci/cmake-v2/ci-macos11_12sdk-xcode13_2_1-mpi.cmake
deleted file mode 100644
index 2386f1e72c..0000000000
--- a/scripts/ci/cmake-v2/ci-macos11_12sdk-xcode13_2_1-mpi.cmake
+++ /dev/null
@@ -1,23 +0,0 @@
-# Client maintainer: chuck.atkins@kitware.com
-set(ENV{CC}  clang)
-set(ENV{CXX} clang++)
-set(ENV{FC}  gfortran-11)
-
-set(dashboard_cache "
-ADIOS2_USE_Fortran:BOOL=ON
-ADIOS2_USE_MPI:BOOL=ON
-ADISO2_USE_Python:BOOL=ON
-
-CMAKE_C_FLAGS:STRING=-Wall
-CMAKE_CXX_FLAGS:STRING=-Wall
-CMAKE_Fortran_FLAGS:STRING=-Wall
-")
-
-set(ENV{MACOSX_DEPLOYMENT_TARGET} "12.1")
-set(CTEST_CMAKE_GENERATOR "Ninja")
-list(APPEND CTEST_UPDATE_NOTES_FILES "${CMAKE_CURRENT_LIST_FILE}")
-set(CTEST_TEST_ARGS
-  # Unclear why these tests currently die.  Disabling until it can be addressed.
-  EXCLUDE "Install.Make.*"
-)
-include(${CMAKE_CURRENT_LIST_DIR}/ci-common.cmake)
diff --git a/scripts/ci/cmake-v2/ci-macos11_12sdk-xcode13_2_1-serial.cmake b/scripts/ci/cmake-v2/ci-macos12-xcode13_4_1-serial.cmake
similarity index 92%
rename from scripts/ci/cmake-v2/ci-macos11_12sdk-xcode13_2_1-serial.cmake
rename to scripts/ci/cmake-v2/ci-macos12-xcode13_4_1-serial.cmake
index 2d47ad020f..37ceb637c3 100644
--- a/scripts/ci/cmake-v2/ci-macos11_12sdk-xcode13_2_1-serial.cmake
+++ b/scripts/ci/cmake-v2/ci-macos12-xcode13_4_1-serial.cmake
@@ -1,4 +1,4 @@
-# Client maintainer: chuck.atkins@kitware.com
+# Client maintainer: vicente.bolea@kitware.com
 set(ENV{CC}  clang)
 set(ENV{CXX} clang++)
 set(ENV{FC}  gfortran-11)