diff --git a/BlueElectrum.js b/BlueElectrum.js
index 37c660cd..497c3668 100644
--- a/BlueElectrum.js
+++ b/BlueElectrum.js
@@ -364,6 +364,10 @@ module.exports.multiGetTransactionByTxid = async function(txids, batchsize, verb
             if (txhashHeightCache[txid]) {
               // got blockheight where this tx was confirmed
               tx.confirmations = this.estimateCurrentBlockheight() - txhashHeightCache[txid];
+              if (tx.confirmations < 0) {
+                // ugly fix for when estimator lags behind
+                tx.confirmations = 1;
+              }
               tx.time = this.calculateBlockTime(txhashHeightCache[txid]);
               tx.blocktime = this.calculateBlockTime(txhashHeightCache[txid]);
             }
@@ -463,7 +467,7 @@ module.exports.broadcastV2 = async function(hex) {
 
 module.exports.estimateCurrentBlockheight = function() {
   const baseTs = 1585837504347; // uS
-  const baseHeight = 624083;
+  const baseHeight = 624197;
   return Math.floor(baseHeight + (+new Date() - baseTs) / 1000 / 60 / 10);
 };