diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 2915d838..7fbdc449 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -7,3 +7,21 @@ updates:
       interval: weekly
       day: monday
     open-pull-requests-limit: 5
+
+  # Maintained version branches: keep workflow action pins from drifting
+  # behind main (Dependabot only scans the default branch otherwise).
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    target-branch: "13.4"
+    schedule:
+      interval: weekly
+      day: monday
+    open-pull-requests-limit: 5
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    target-branch: "14.3"
+    schedule:
+      interval: weekly
+      day: monday
+    open-pull-requests-limit: 5