diff --git a/.github/workflows/build_matrix.json b/.github/workflows/build_matrix.json
index 8f7390c8..03f25a19 100644
--- a/.github/workflows/build_matrix.json
+++ b/.github/workflows/build_matrix.json
@@ -57,13 +57,6 @@
       "tmpdir": "/tmp",
       "tier": "core"
     },
-    {
-      "os": "macos-15-large",
-      "label": "macos-15-x86_64",
-      "cmake_args": "-G Ninja -DMUJOCO_HARDEN:BOOL=ON",
-      "tmpdir": "/tmp",
-      "tier": "core"
-    },
     {
       "os": "windows-2025",
       "label": "windows-2025",