diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 6e78dea..34dc813 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -20,7 +20,7 @@ permissions:
 
 jobs:
   deploy:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     environment: ${{ inputs.environment }}
     # One deploy per environment at a time; a newer one waits rather than cancelling one half done.
     concurrency:
diff --git a/.github/workflows/pipeline.yml b/.github/workflows/pipeline.yml
index 7f2a8e9..59b7b0f 100644
--- a/.github/workflows/pipeline.yml
+++ b/.github/workflows/pipeline.yml
@@ -20,7 +20,7 @@ env:
 
 jobs:
   backend:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     defaults:
       run:
         working-directory: backend
@@ -34,7 +34,7 @@ jobs:
       - run: uv run pytest
 
   frontend:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     defaults:
       run:
         working-directory: frontend
@@ -58,7 +58,7 @@ jobs:
 
   plan:
     if: github.event_name == 'pull_request'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     permissions:
       contents: read
       id-token: write
@@ -92,7 +92,7 @@ jobs:
   image:
     if: github.event_name == 'push'
     needs: [backend, frontend]
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     environment: dev
     permissions:
       contents: read