diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9ec6a39..1d96d09 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -160,7 +160,7 @@ jobs:
 
   bazel-macos:
     name: bazel macos arm64
-    runs-on: macos-15
+    runs-on: macos-26
     steps:
       - name: checkout
         uses: actions/checkout@v6
@@ -455,7 +455,7 @@ jobs:
 
   cmake-macos:
     name: cmake macos arm64
-    runs-on: macos-15
+    runs-on: macos-26
     steps:
       - name: checkout
         uses: actions/checkout@v6