diff --git a/plugins/config-cleaner.js b/plugins/config-cleaner.js
index 0948f68..929198b 100644
--- a/plugins/config-cleaner.js
+++ b/plugins/config-cleaner.js
@@ -1,6 +1,6 @@
 module.exports = {
 
-  cronTime: '* * * * *',
+  cronTime: '0 * * * *', // run each hour
   threshold: 2*24*60*60, // 2 days, in seconds
 
 };