diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 11b951d..b4adb5b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,7 +21,7 @@ concurrency:
 jobs:
   changes:
     name: Determine which variants need building
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     outputs:
       variants: ${{ steps.set-matrix.outputs.variants }}
     steps:
@@ -77,7 +77,7 @@ jobs:
     name: Build and push ${{ matrix.variant }} image
     needs: changes
     if: needs.changes.outputs.variants != '[]'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     timeout-minutes: 40
 
     strategy: