diff --git a/lib/blockchain/index.js b/lib/blockchain/index.js
index 168fabf..9fb28dd 100644
--- a/lib/blockchain/index.js
+++ b/lib/blockchain/index.js
@@ -104,7 +104,7 @@ class Blockchain {
   generateNextBlock (blockData) {
     const previousBlock = this.latestBlock;
     const nextIndex = previousBlock.index + 1;
-    const nextTimestamp = new Date().getTime() / 1000
+    const nextTimestamp = Math.floor(new Date().getTime() / 1000);
     let nonce = 0;
     let nextHash = '';
     const randSpinner = spinner.getRandomSpinner();