diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 43af6b2..a0986b9 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -4,7 +4,7 @@ jobs:
   build:
     strategy:
       matrix:
-        operating-system: [ubuntu-latest, macos-11]
+        operating-system: [ubuntu-latest, macos-15]
         php-versions: ['7.3', '7.4', '8.0', '8.1', '8.2']
     runs-on: ${{ matrix.operating-system }}
     steps: