diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5a1adb2..7ccbc58 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -51,8 +51,6 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # macos-13 runners have intel chips. macos-14 and above
-        # runners have Apple silicon chips.
         os: [ ubuntu-latest ]
         python-version: [ 3.9, "3.10", "3.11", "3.12", "3.13"]
         link_mkl: [true]
@@ -107,8 +105,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        # macos-13 is an intel runner, macos-14 is apple silicon
-        os: [ubuntu-latest, macos-14, windows-latest, macos-13]
+        os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
       - uses: actions/checkout@v5