diff --git a/.github/workflows/build_run_unit_test_cmake.yml b/.github/workflows/build_run_unit_test_cmake.yml
index 1f6764d..b0fe2c5 100644
--- a/.github/workflows/build_run_unit_test_cmake.yml
+++ b/.github/workflows/build_run_unit_test_cmake.yml
@@ -12,7 +12,7 @@ jobs:
   build_matrix:
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-14]
+        os: [ubuntu-latest, windows-latest, macos-15]
         # os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     defaults:
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index d5295bf..b459aae 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -11,8 +11,8 @@ project ( binary_serialize_test LANGUAGES CXX )
 # add dependencies
 include ( ../cmake/download_cpm.cmake )
 
-CPMAddPackage ( "gh:catchorg/Catch2@3.7.0" )
-CPMAddPackage ( "gh:connectivecpp/utility-rack@1.0.3" )
+CPMAddPackage ( "gh:catchorg/Catch2@3.8.0" )
+CPMAddPackage ( "gh:connectivecpp/utility-rack@1.0.4" )
 
 set ( test_app_names byteswap_test
                      extract_append_test