diff --git a/.github/workflows/BuildTest.yaml b/.github/workflows/BuildTest.yaml
index bacafe0..527114a 100644
--- a/.github/workflows/BuildTest.yaml
+++ b/.github/workflows/BuildTest.yaml
@@ -9,7 +9,7 @@ on:
 jobs:
   build:
     name: build
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     timeout-minutes: 180
     strategy:
       fail-fast: false
@@ -108,7 +108,7 @@ jobs:
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
   merge:
     name: merge
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     timeout-minutes: 180
     needs: build
     steps: