diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c80072de..e56dd739 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-22.04, ubuntu-20.04, macos-12, macos-11]
+        os: [ubuntu-22.04, ubuntu-20.04, macos-13, macos-12]
         compiler: [ {cc: gcc, cxx: g++}, {cc: clang, cxx: clang++} ]
         include:
           - os: [windows-2022]