diff --git a/.github/workflows/continuous-integration.yaml b/.github/workflows/continuous-integration.yaml
index a31be9b..490b007 100644
--- a/.github/workflows/continuous-integration.yaml
+++ b/.github/workflows/continuous-integration.yaml
@@ -11,7 +11,7 @@ jobs:
   run-testsuite:
     strategy:
       matrix:
-        os: ['ubuntu-latest', 'macos-11', 'macos-12', 'macos-13']
+        os: ['ubuntu-latest', 'macos-11', 'macos-12', 'macos-13', 'macos-14']
     runs-on: '${{ matrix.os }}'
     name: 'Run Testsuite'
     steps:
@@ -22,7 +22,7 @@ jobs:
   install-macports:
     strategy:
       matrix:
-        os: ['macos-11', 'macos-12', 'macos-13']
+        os: ['macos-11', 'macos-12', 'macos-13', 'macos-14']
         version: ['2.9.3']
         prefix: ['/opt/local']
     runs-on: '${{ matrix.os }}'
diff --git a/subr/macos.sh b/subr/macos.sh
index 9149e79..acfe8fb 100644
--- a/subr/macos.sh
+++ b/subr/macos.sh
@@ -39,6 +39,7 @@ known_macos_db()
 11-BigSur
 12-Monterey
 13-Ventura
+14-Sonoma
 EOF
 }
 
diff --git a/testsuite/run-testsuite-on-macos-14.yaml b/testsuite/run-testsuite-on-macos-14.yaml
new file mode 100644
index 0000000..35f1204
--- /dev/null
+++ b/testsuite/run-testsuite-on-macos-14.yaml
@@ -0,0 +1,13 @@
+version: '2.9.3'
+prefix: '/opt/local'
+variants:
+  select:
+    - aqua
+    - metal
+  deselect: x11
+ports:
+  - name: db48
+    deselect: [ java ]
+    select: [ tcl, universal ]
+  - name: gmp
+    select: native