From d8a6c0f19a5146ea9d5b37fb76e4c6236903f157 Mon Sep 17 00:00:00 2001
From: Yishuai Li <liyishuai.lys@alibaba-inc.com>
Date: Mon, 15 Jul 2024 16:10:37 +0800
Subject: [PATCH] ci: Restrict OS for versions

---
 .github/dependabot.yml      |  6 ++++++
 .github/workflows/build.yml | 36 +++++++++++++++++++++++++-----------
 2 files changed, 31 insertions(+), 11 deletions(-)
 create mode 100644 .github/dependabot.yml

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..ca79ca5
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 13ae45a..23744e0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,22 +18,36 @@ jobs:
           - ubuntu-latest
           - windows-latest
         ocaml-version:
-          - 4.02.x
-          - 4.03.x
-          - 4.04.x
-          - 4.05.x
-          - 4.06.x
-          - 4.07.x
-          - 4.08.x
-          - 4.09.x
-          - 4.10.x
-          - 4.11.x
-          - 4.12.x
           - 4.13.x
           - 4.14.x
           - 5.0.x
           - 5.1.x
           - 5.2.x
+        include:
+          - os: ubuntu-latest
+            ocaml-version: 4.02.x
+          - os: ubuntu-latest
+            ocaml-version: 4.03.x
+          - os: ubuntu-latest
+            ocaml-version: 4.04.x
+          - os: ubuntu-latest
+            ocaml-version: 4.05.x
+          - os: ubuntu-latest
+            ocaml-version: 4.06.x
+          - os: ubuntu-latest
+            ocaml-version: 4.07.x
+          - os: ubuntu-latest
+            ocaml-version: 4.08.x
+          - os: ubuntu-latest
+            ocaml-version: 4.09.x
+          - os: ubuntu-latest
+            ocaml-version: 4.10.x
+          - os: ubuntu-latest
+            ocaml-version: 4.11.x
+          - os: ubuntu-latest
+            ocaml-version: 4.12.x
+          - os: macos-latest
+            ocaml-version: 4.12.x
 
     runs-on: ${{ matrix.os }}