diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index e1731cc..d71e780 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -7,4 +7,29 @@ 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: "12.4"
+    schedule:
+      interval: weekly
+      day: monday
+    open-pull-requests-limit: 5
+
+  - 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