From 21dc5d142b92115d9c154540e48df504ad4e9cf9 Mon Sep 17 00:00:00 2001
From: 839 <8398a7@gmail.com>
Date: Fri, 26 Jan 2024 23:25:13 +0900
Subject: [PATCH] update os

---
 .github/workflows/slack-mainline.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/slack-mainline.yml b/.github/workflows/slack-mainline.yml
index af7fdebb..de7f60da 100644
--- a/.github/workflows/slack-mainline.yml
+++ b/.github/workflows/slack-mainline.yml
@@ -106,7 +106,7 @@ jobs:
   matrix-notification:
     strategy:
       matrix:
-        os: [ubuntu-18.04, ubuntu-20.04]
+        os: [ubuntu-20.04, ubuntu-22.04]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: 8398a7/action-slack@v3