diff --git a/api/Database/klapi.db b/api/Database/klapi.db
index 322d07f..167565f 100644
Binary files a/api/Database/klapi.db and b/api/Database/klapi.db differ
diff --git a/ui/src/components/ConfirmDialog.tsx b/ui/src/components/ConfirmDialog.tsx
new file mode 100644
index 0000000..1bba917
--- /dev/null
+++ b/ui/src/components/ConfirmDialog.tsx
@@ -0,0 +1,83 @@
+import { useEffect } from "react";
+
+type ConfirmDialogProps = {
+  open: boolean;
+  title: string;
+  description?: string;
+  contextText?: string;
+  confirmLabel: string;
+  cancelLabel: string;
+  busy?: boolean;
+  busyLabel?: string;
+  onConfirm: () => void;
+  onCancel: () => void;
+};
+
+export default function ConfirmDialog({
+  open,
+  title,
+  description,
+  contextText,
+  confirmLabel,
+  cancelLabel,
+  busy = false,
+  busyLabel,
+  onConfirm,
+  onCancel,
+}: ConfirmDialogProps) {
+  useEffect(() => {
+    if (!open) return;
+
+    const onKeyDown = (event: KeyboardEvent) => {
+      if (event.key === "Escape" && !busy) {
+        onCancel();
+      }
+    };
+
+    window.addEventListener("keydown", onKeyDown);
+    return () => {
+      window.removeEventListener("keydown", onKeyDown);
+    };
+  }, [open, busy, onCancel]);
+
+  if (!open) return null;
+
+  return (
+    <div
+      className="fixed inset-0 z-50 flex items-center justify-center bg-[#2B170A]/60 px-4"
+      onClick={() => {
+        if (!busy) onCancel();
+      }}
+    >
+      <div
+        role="dialog"
+        aria-modal="true"
+        className="w-full max-w-md rounded-xl border border-[#C99763] bg-[#F5D1A9] p-5 shadow-xl"
+        onClick={(event) => event.stopPropagation()}
+      >
+        <h3 className="text-lg font-semibold text-[#4C250E]">{title}</h3>
+        {description && <p className="mt-2 text-sm text-[#70421E]">{description}</p>}
+        {contextText && <p className="mt-1 text-sm font-medium text-[#4C250E]">{contextText}</p>}
+
+        <div className="mt-4 flex flex-wrap gap-2">
+          <button
+            type="button"
+            onClick={onCancel}
+            disabled={busy}
+            className="rounded-md border border-[#A56C38] bg-[#EED5B8] px-3 py-1.5 text-sm text-[#70421E] hover:bg-[#E3A977] disabled:cursor-not-allowed disabled:opacity-50"
+          >
+            {cancelLabel}
+          </button>
+          <button
+            type="button"
+            onClick={onConfirm}
+            disabled={busy}
+            className="rounded-md border border-[#70421E] bg-[#8E4F24] px-3 py-1.5 text-sm text-[#FFF7EE] hover:bg-[#70421E] disabled:cursor-not-allowed disabled:opacity-50"
+          >
+            {busy ? busyLabel ?? confirmLabel : confirmLabel}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}
\ No newline at end of file
diff --git a/ui/src/components/OpenHoursForm.tsx b/ui/src/components/OpenHoursForm.tsx
index 16dc9b2..fc4ff43 100644
--- a/ui/src/components/OpenHoursForm.tsx
+++ b/ui/src/components/OpenHoursForm.tsx
@@ -8,6 +8,7 @@ import {
   updateLokOpenHours,
   type LokOpenHours,
 } from "~/api";
+import ConfirmDialog from "~/components/ConfirmDialog";
 import { useT } from "~/i18n";
 import { openHoursAtom, toastsAtom, type Toast } from "~/state/appState";
 
@@ -38,6 +39,7 @@ export default function OpenHoursForm() {
   const [isEditing, setIsEditing] = useState(false);
   const [editingVersionId, setEditingVersionId] = useState("");
   const [deletingId, setDeletingId] = useState("");
+  const [confirmDeleteVersion, setConfirmDeleteVersion] = useState<LokOpenHours | null>(null);
   const [activatingId, setActivatingId] = useState("");
   const [saving, setSaving] = useState(false);
   const [form, setForm] = useState<FormState>(EMPTY_FORM);
@@ -217,6 +219,21 @@ export default function OpenHoursForm() {
     }
   };
 
+  const askDeleteConfirmation = (version: LokOpenHours) => {
+    setConfirmDeleteVersion(version);
+  };
+
+  const cancelDeleteConfirmation = () => {
+    if (deletingId) return;
+    setConfirmDeleteVersion(null);
+  };
+
+  const confirmDelete = async () => {
+    if (!confirmDeleteVersion) return;
+    await onDelete(confirmDeleteVersion);
+    setConfirmDeleteVersion(null);
+  };
+
   const onSetActive = async (version: LokOpenHours) => {
     if (version.isActive) return;
 
@@ -328,7 +345,7 @@ export default function OpenHoursForm() {
                         disabled={active || deleting}
                         onClick={(event) => {
                           event.stopPropagation();
-                          void onDelete(version);
+                          askDeleteConfirmation(version);
                         }}
                         className={`rounded-md border border-[#8E4F24] bg-[#EED5B8] px-3 py-1.5 text-sm text-[#70421E] disabled:cursor-not-allowed disabled:opacity-50 ${!active ? "hover:bg-[#E3A977]" : ""
                           }`}
@@ -416,6 +433,21 @@ export default function OpenHoursForm() {
           </div>
         </form>
       </div>
+
+      <ConfirmDialog
+        open={Boolean(confirmDeleteVersion)}
+        title={t("home.openHours.deleteConfirmTitle")}
+        description={t("home.openHours.deleteConfirmMessage")}
+        contextText={confirmDeleteVersion?.name || t("home.openHours.latest")}
+        cancelLabel={t("home.openHours.cancel")}
+        confirmLabel={t("home.openHours.deleteConfirmAction")}
+        busy={Boolean(deletingId)}
+        busyLabel={t("home.openHours.deleting")}
+        onCancel={cancelDeleteConfirmation}
+        onConfirm={() => {
+          void confirmDelete();
+        }}
+      />
     </section>
   );
 }
diff --git a/ui/src/i18n.ts b/ui/src/i18n.ts
index a721bb9..8332e8a 100644
--- a/ui/src/i18n.ts
+++ b/ui/src/i18n.ts
@@ -44,6 +44,10 @@ const translations = {
     "home.openHours.saved": "New version saved",
     "home.openHours.updated": "Version updated",
     "home.openHours.deleted": "Version deleted",
+    "home.openHours.deleting": "Deleting...",
+    "home.openHours.deleteConfirmTitle": "Delete version?",
+    "home.openHours.deleteConfirmMessage": "This action cannot be undone.",
+    "home.openHours.deleteConfirmAction": "Delete version",
     "about.title": "About",
     "about.description":
       "Livonsaaren Tietokonepaja is a local project providing IT services for our dear archipelago.",
@@ -125,6 +129,10 @@ const translations = {
     "home.openHours.saved": "Uusi versio tallennettu",
     "home.openHours.updated": "Versio päivitetty",
     "home.openHours.deleted": "Versio poistettu",
+    "home.openHours.deleting": "Poistetaan...",
+    "home.openHours.deleteConfirmTitle": "Poistetaanko versio?",
+    "home.openHours.deleteConfirmMessage": "Tätä toimintoa ei voi perua.",
+    "home.openHours.deleteConfirmAction": "Poista versio",
     "about.title": "Tietoja",
     "about.description":
       "Livonsaaren Tietokonepaja on paikallisprojekti, joka tuottaa IT-palveluita rakkaalle lähisaaristollemme.",
@@ -207,6 +215,11 @@ const translations = {
     "home.openHours.saved": "Nová verzia uložená",
     "home.openHours.updated": "Verzia bola aktualizovaná",
     "home.openHours.deleted": "Verzia bola odstránená",
+    "home.openHours.deleting": "Odstraňuje sa...",
+    "home.openHours.deleteConfirmTitle": "Odstrániť verziu?",
+    "home.openHours.deleteConfirmMessage":
+      "Túto akciu nie je možné vrátiť späť.",
+    "home.openHours.deleteConfirmAction": "Odstrániť verziu",
     "about.title": "O aplikácii",
     "about.description":
       "Livonsaaren Tietokonepaja je lokálny projekt poskytujúci IT služby pre naše milované súostrovie.",