diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 269233dd8..6deb51ec5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,7 +38,9 @@ jobs:
           - { toolset: clang, compiler: clang++-12,  cxxstd: "11,14,17,2a",    os: ubuntu-22.04, install: clang-12 }
           - { toolset: clang, compiler: clang++-13,  cxxstd: "11,14,17,20,2b", os: ubuntu-22.04, install: clang-13 }
           - { toolset: clang, compiler: clang++-14,  cxxstd: "11,14,17,20,2b", os: ubuntu-22.04, install: clang-14 }
-          - { toolset: clang,                        cxxstd: "11,14,17,2a",    os: macos-13 }
+          - { toolset: clang,                        cxxstd: "11,14,17,2a",    os: macos-15-intel }
+          - { toolset: clang,                        cxxstd: "11,14,17,2a",    os: macos-15 }
+          - { toolset: clang,                        cxxstd: "11,14,17,2a",    os: macos-26 }
 
     runs-on: ${{matrix.os}}
     container: