diff --git a/dashboard/src/components/GroupDialog.vue b/dashboard/src/components/GroupDialog.vue
index d0abcb022..60e337197 100644
--- a/dashboard/src/components/GroupDialog.vue
+++ b/dashboard/src/components/GroupDialog.vue
@@ -95,12 +95,12 @@ defineExpose({
         <FormGroup>
           <label for="usersInput">{{ $t('users.group.users') }}</label>
           <div v-if="group?.source"><span ng-repeat="user in groupEdit.selectedUsers"> {{ (user.username || user.email) }}</span></div>
-          <MultiSelect v-else v-model="users" :options="allUsers" :search-threshold="20"/>
+          <MultiSelect v-else v-model="users" :options="allUsers" option-key="id" :search-threshold="20"/>
         </FormGroup>
 
         <FormGroup>
           <label for="appsInput">Access to Apps</label>
-          <MultiSelect v-model="apps" :options="allApps" :search-threshold="20"/>
+          <MultiSelect v-model="apps" :options="allApps" option-key="id" :search-threshold="20"/>
         </FormGroup>
       </fieldset>
     </form>
diff --git a/dashboard/src/components/UserDialog.vue b/dashboard/src/components/UserDialog.vue
index 809e18bc3..1304bd92e 100644
--- a/dashboard/src/components/UserDialog.vue
+++ b/dashboard/src/components/UserDialog.vue
@@ -276,7 +276,7 @@ defineExpose({
         <FormGroup>
           <label for="groupsInput">{{ $t('users.user.groups') }}</label>
           <div v-if="allGroups.length === 0">{{ $t('users.user.noGroups') }}</div>
-          <MultiSelect v-if="allLocalGroups.length" v-model="localGroups" :options="allLocalGroups" :search-threshold="20" />
+          <MultiSelect v-if="allLocalGroups.length" v-model="localGroups" option-key="id" :options="allLocalGroups" :search-threshold="20" />
         </FormGroup>
 
         <Checkbox v-model="active" :disabled="isSelf" :label="$t('users.user.activeCheckbox')" style="display: inline-flex; margin-right: 6px;" /><sup><a href="https://docs.cloudron.io/user-management/#disable-user" class="help" target="_blank"><i class="fa fa-question-circle"></i></a></sup><br/>
diff --git a/dashboard/src/views/EventlogView.vue b/dashboard/src/views/EventlogView.vue
index f12f8156f..49706f9a2 100644
--- a/dashboard/src/views/EventlogView.vue
+++ b/dashboard/src/views/EventlogView.vue
@@ -153,7 +153,7 @@ onMounted(async () => {
         {{ $t('eventlog.title') }}
         <div>
           <TextInput :placeholder="$t('main.searchPlaceholder')" style="flex-grow: 1;" v-model="search"/>
-          <MultiSelect :search-threshold="10" v-model="actions" :options="availableActions" option-label="id" :selected-label="actions.length ? $t('main.multiselect.selected', { n: actions.length }) : $t('eventlog.filterAllEvents')"/>
+          <MultiSelect :search-threshold="10" v-model="actions" :options="availableActions" option-label="id" option-key="id" :selected-label="actions.length ? $t('main.multiselect.selected', { n: actions.length }) : $t('eventlog.filterAllEvents')"/>
           <Button tool secondary @click="onRefresh()" :loading="refreshBusy" icon="fa-solid fa-sync-alt" />
         </div>
       </h1>