diff --git a/.github/workflows/verify-global-install.yml b/.github/workflows/verify-global-install.yml
index c3bd490..4f37584 100644
--- a/.github/workflows/verify-global-install.yml
+++ b/.github/workflows/verify-global-install.yml
@@ -207,7 +207,14 @@ jobs:
           INSTALLER: ${{ matrix.installer }}
           TARBALL_DIR: ${{ runner.temp }}/opencodehub-tarballs
           FIXTURE_DIR: tests/fixtures/multi-lang
-          MAX_INSTALL_SECS: "60"
+          # Use the script's documented default budget. A cold-cache global
+          # install of the native prebuilts (ladybug + duckdb + onnxruntime)
+          # on a loaded shared runner legitimately varies 30-90s, so the old
+          # hardcoded 60s tripped on slow macOS cells despite a clean install
+          # (see scripts/verify-global-install.sh header + issue #163). The
+          # gate guards against an install that HANGS or refetches, not a perf
+          # benchmark, so 120s is the right ceiling.
+          MAX_INSTALL_SECS: "120"
         run: bash scripts/verify-global-install.sh local
 
       # ------------------------------------------------------------------