diff --git a/.github/workflows/test-ubuntu-latest-clang-with_std_expected.yml b/.github/workflows/test-ubuntu-latest-clang-with_std_expected.yml
index 14d4c0d..c2b7ab8 100644
--- a/.github/workflows/test-ubuntu-latest-clang-with_std_expected.yml
+++ b/.github/workflows/test-ubuntu-latest-clang-with_std_expected.yml
@@ -31,7 +31,7 @@ jobs:
     - name: Configure CMake
       # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
       # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DBUILD_TESTS=ON -DWITH_STD_EXPECTED=ON -DCMAKE_CXX_COMPILER=clang++-18 -DCMAKE_CXX_FLAGS="-stdlib=libc++ -fexperimental-library" 
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DBUILD_TESTS=ON -DWITH_STD_EXPECTED=ON -DCMAKE_CXX_COMPILER=clang++-18 -DCMAKE_CXX_FLAGS="-std=c++23 -stdlib=libc++ -fexperimental-library" 
 
     - name: Build
       # Build your program with the given configuration