diff --git a/python/ironic-understack/devbox.json b/python/ironic-understack/devbox.json
index e5b5b9fa0..bec8dfe47 100644
--- a/python/ironic-understack/devbox.json
+++ b/python/ironic-understack/devbox.json
@@ -6,7 +6,7 @@
     "python3@3.11",
     "poetry@latest",
     "kubectl@latest",
-    "kubeseal@latest",
+    "kubeseal@0.28.0",
     "kustomize@latest",
     "telepresence2@latest"
   ],
diff --git a/python/understack-workflows/devbox.json b/python/understack-workflows/devbox.json
index 0e7ca1e8e..118b475cd 100644
--- a/python/understack-workflows/devbox.json
+++ b/python/understack-workflows/devbox.json
@@ -7,7 +7,7 @@
     "argo@latest",
     "argocd@latest",
     "kubectl@latest",
-    "kubeseal@latest",
+    "kubeseal@0.28.0",
     "kustomize@latest",
     "telepresence2@latest",
     "jq@latest",