diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0dd4b71..871e1f4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
     uses: peaceiris/workflows/.github/workflows/hadolint.yml@v0.21.1
 
   docker:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     timeout-minutes: 10
     permissions:
       actions: write