diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 2b43488f6e..8db0dedf5f 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -49,7 +49,6 @@ jobs:
         os:
           - ubuntu-22.04
           - ubuntu-24.04
-          - macos-12
           - macos-13
           - macos-14
         java:
@@ -193,7 +192,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: [12, 13, 14]
+        version: [13, 14]
     runs-on: macos-${{ matrix.version }}
     steps:
     - name: Checkout repository
diff --git a/site/_docs/building.md b/site/_docs/building.md
index 367698b1c5..ef84a75422 100644
--- a/site/_docs/building.md
+++ b/site/_docs/building.md
@@ -11,7 +11,7 @@ The C++ library is supported on the following operating systems:
 
 * CentOS 7
 * Debian 10 to 12
-* MacOS 12 to 14
+* MacOS 13 to 14
 * Ubuntu 22.04 to 24.04
 
 You'll want to install the usual set of developer tools, but at least: