diff --git a/.github/actionlint.yaml b/.github/actionlint.yaml
new file mode 100644
index 0000000..d953b67
--- /dev/null
+++ b/.github/actionlint.yaml
@@ -0,0 +1,3 @@
+self-hosted-runner:
+  labels:
+    - blacksmith-2vcpu-ubuntu-2404
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0d653f3..fed08b3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ concurrency:
 
 jobs:
   ci:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     # Bounded, so a step that hangs fails here rather than sitting until the
     # runner's own timeout hours later.
     timeout-minutes: 15
diff --git a/.github/workflows/dependabot.yml b/.github/workflows/dependabot.yml
index 157be10..aaf8938 100644
--- a/.github/workflows/dependabot.yml
+++ b/.github/workflows/dependabot.yml
@@ -13,7 +13,7 @@ permissions:
 jobs:
   auto-merge:
     if: github.event.pull_request.user.login == 'dependabot[bot]'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - name: Read Dependabot metadata
         id: metadata