diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3263ca6..b48b19a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     timeout-minutes: 30
     permissions:
       contents: read
@@ -30,7 +30,7 @@ jobs:
         timeout-minutes: 20
         run: bundle exec rspec -f doc
   lint:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     timeout-minutes: 20
     permissions:
       contents: read
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 866ef36..6a2b0ce 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -4,7 +4,7 @@ on:
     types: [published]
 jobs:
   release:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
       - name: Checkout code
         uses: actions/checkout@v4