diff --git a/src/tools/crontab-generator/crontab-generator.vue b/src/tools/crontab-generator/crontab-generator.vue
index 97503e7d..eb3063ed 100644
--- a/src/tools/crontab-generator/crontab-generator.vue
+++ b/src/tools/crontab-generator/crontab-generator.vue
@@ -1,12 +1,7 @@
 <script setup lang="ts">
 import cronstrue from 'cronstrue';
-import { isValidCron } from 'cron-validator';
 import { useStyleStore } from '@/stores/style.store';
 
-function isCronValid(v: string) {
-  return isValidCron(v, { allowBlankDay: true, alias: true, seconds: true });
-}
-
 const styleStore = useStyleStore();
 
 const cron = ref('40 * * * *');
@@ -17,6 +12,16 @@ const cronstrueConfig = reactive({
   throwExceptionOnParseError: true,
 });
 
+function isCronValid(v: string) {
+  try {
+    cronstrue.toString(v, cronstrueConfig);
+    return true;
+  }
+  catch (_) {
+    return false;
+  }
+}
+
 const helpers = [
   {
     symbol: '*',