diff --git a/config/default.json b/config/default.json
index 70ffe7f4..21111bee 100644
--- a/config/default.json
+++ b/config/default.json
@@ -23,6 +23,7 @@
         "foundationRewardRate": 10,
         "gas": 2000000,
         "blockSignerGap": 15,
+        "blockSignerDelay": 5,
         "foundationAddress": "0x0000000000000000000000000000000000000068",
         "validatorAddress": "0x0000000000000000000000000000000000000088",
         "blockSignerAddress": "0x0000000000000000000000000000000000000089",
diff --git a/crawl.js b/crawl.js
index 41da409d..0d63c8e1 100644
--- a/crawl.js
+++ b/crawl.js
@@ -563,10 +563,10 @@ const getBlockSigners = async (number) => {
   
 async function updateLatestSignedBlock (blk) {
     try {
-        if (!blk || blk.number % parseInt(config.get('blockchain.blockSignerGap')) != 0) {
+        if (!blk || blk.number % parseInt(config.get('blockchain.blockSignerGap')) != parseInt(config.get('blockchain.blockSignerDelay'))) {
             return
         }
-        const signers = await getBlockSigners(blk.number)
+        const signers = await getBlockSigners(blk.number - parseInt(config.get('blockchain.blockSignerDelay')))
         let bulkOps = []
         for (const signer of signers) {
             bulkOps.push({