diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ca1434ee..1b81fa97 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -239,15 +239,15 @@ jobs:
               - libc++-14-dev
               - libc++abi-14-dev
 
-          - toolset: clang
-            cxxstd: "03,11,14,17,20,2b"
-            os: macos-12
           - toolset: clang
             cxxstd: "03,11,14,17,20,2b"
             os: macos-13
           - toolset: clang
             cxxstd: "03,11,14,17,20,2b"
             os: macos-14
+          - toolset: clang
+            cxxstd: "03,11,14,17,20,2b"
+            os: macos-15
 
     timeout-minutes: 180
     runs-on: ${{matrix.os}}
@@ -526,9 +526,9 @@ jobs:
         include:
           - os: ubuntu-20.04
           - os: ubuntu-22.04
-          - os: macos-12
           - os: macos-13
           - os: macos-14
+          - os: macos-15
 
     runs-on: ${{matrix.os}}
 
@@ -575,9 +575,9 @@ jobs:
         include:
           - os: ubuntu-20.04
           - os: ubuntu-22.04
-          - os: macos-12
           - os: macos-13
           - os: macos-14
+          - os: macos-15
 
     runs-on: ${{matrix.os}}
 
@@ -634,9 +634,9 @@ jobs:
         include:
           - os: ubuntu-20.04
           - os: ubuntu-22.04
-          - os: macos-12
           - os: macos-13
           - os: macos-14
+          - os: macos-15
 
     runs-on: ${{matrix.os}}