diff --git a/.github/actionlint.yml b/.github/actionlint.yml
new file mode 100644
index 0000000..709e0b8
--- /dev/null
+++ b/.github/actionlint.yml
@@ -0,0 +1,4 @@
+# actionlint 1.7.12 does not know this GitHub-hosted runner label yet.
+self-hosted-runner:
+  labels:
+    - ubuntu-26.04
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 76e5d22..1765f90 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -56,7 +56,7 @@ jobs:
 
             while IFS= read -r changed_file; do
               case "${changed_file}" in
-                .github/workflows/*)
+                .github/actionlint.yml|.github/workflows/*)
                   github_actions_changed=true
                   ;;
               esac