diff --git a/actions.yml b/actions.yml
index 636942c4e..6cac68b1e 100644
--- a/actions.yml
+++ b/actions.yml
@@ -508,6 +508,9 @@ jarvusinnovations/background-action:
 jasonetco/create-an-issue:
   1b14a70e4d8dc185e5cc76d3bec9eab20257b2c5:
     tag: v2
+jenseng/dynamic-uses:   # used by setup-localstack
+  8bc24f0360175e710da532c4d19eafdbed489a06:
+    tag: v1.1.1
 JetBrains/qodana-action:
   89eb4357efd2b52e639f3216e63edaf33b82622b:
     tag: v2025.3.2
@@ -612,6 +615,9 @@ lhotari/sandboxed-trivy-action:
     expires_at: 2026-07-08
   f01374b6cc3bf7264ab238293e94f6db7ada6dd0:
     tag: v1.0.2
+LocalStack/setup-localstack:
+  7c8a0cb3405bc58be4c8f763f812aa000bc46303:
+    tag: v0.3.2   # immutable tag, FWIW
 lycheeverse/lychee-action:
   8646ba30535128ac92d33dfc9133794bfdd9b411:
     tag: v2.8.0