diff --git a/index.html b/index.html
index f95a004..323edc3 100644
--- a/index.html
+++ b/index.html
@@ -158,7 +158,9 @@
 											<div class="hidden optionsAdvanced">
 												<label>Segregated Witness Address</label>
 												<p class="checkbox">
-													<label><input type="checkbox" id="walletSegwit" class="checkbox-inline" checked> Use a segwit address instead of a regular address. <span class="text-muted"><i>(recommended)</i></span></label></label>
+													<label><input type="checkbox" id="walletSegwit" class="checkbox-inline" checked> Use a segwit address instead of a regular address. <span class="text-muted"><i>(recommended)</i></span></label></label> <br>
+													<label><input type="radio" id="walletSegwitp2sh" class="walletSegwitType" name="walletSegWitType" value="p2sh" checked> p2sh address</label> <br>
+													<label><input type="radio" id="walletSegwitBech32" class="walletSegwitType" name="walletSegWitType" value="bech32"> bech32 address</label>
 												</p>
 
 												<label>Enable Replace by Fee (RBF)</label>
@@ -188,6 +190,7 @@
 													<button type="button" class="btn btn-default btn-xs dropdown-toggle" data-toggle="dropdown" id="walletToBtn">SegWit <span class="caret"></span></button>
 													<ul class="dropdown-menu">
 														<li><a href="javascript:;" id="walletToSegWit">SegWit</a></li>
+														<li><a href="javascript:;" id="walletToSegWitBech32">SegWit/Bech32</a></li>
 														<li><a href="javascript:;" id="walletToLegacy">Legacy</a></li>
 													</ul>
 												</div>
@@ -256,7 +259,7 @@
 													<div class="row">
 														<div class="col-xs-6">
 															<label><abbr title="the amount to pay in network miner fee">Transaction Fee</abbr>&nbsp;&nbsp;<a href="javascript:;" id="feesestwallet"><span class="glyphicon glyphicon-question-sign"></span></a></label>
-															<input type="text" class="form-control" value="0.0004" id="txFee">
+															<input type="text" class="form-control" value="0.00004000" id="txFee">
 														</div>
 														<div class="col-xs-5">
 															<label><abbr title="the amount to donate to coinb.in">Donation</abbr></label>
diff --git a/js/coin.js b/js/coin.js
index 5dd56fa..a314dc8 100644
--- a/js/coin.js
+++ b/js/coin.js
@@ -1033,7 +1033,6 @@
 			var self = this;
 			this.listUnspent(address, function(data){
 				var s = coinjs.script();
-				var pubkeyScript = s.pubkeyHash(address);
 				var value = 0;
 				var total = 0;
 				var x = {};
diff --git a/js/coinbin.js b/js/coinbin.js
index 7db57ac..c9c693c 100644
--- a/js/coinbin.js
+++ b/js/coinbin.js
@@ -37,11 +37,17 @@ $(document).ready(function() {
 
 					$("#walletKeys .walletSegWitRS").addClass("hidden");
 					if($("#walletSegwit").is(":checked")){
-						var sw = coinjs.segwitAddress(pubkey);
-						address = sw.address;
+						if($("#walletSegwitBech32").is(":checked")){
+							var sw = coinjs.bech32Address(pubkey);
+							address = sw.address;
+						} else {
+
+							var sw = coinjs.segwitAddress(pubkey);
+							address = sw.address;
+						}
 
 						$("#walletKeys .walletSegWitRS").removeClass("hidden");
-						$("#walletKeys .walletSegWitRS input:text").val(sw.redeemscript);						
+						$("#walletKeys .walletSegWitRS input:text").val(sw.redeemscript);
 					}
 
 					$("#walletAddress").html(address);
@@ -94,9 +100,25 @@ $(document).ready(function() {
 		$("#openLoginStatus").html("").hide();
 	});
 
+	$("#walletSegwit").click(function(){
+		if($(this).is(":checked")){
+			$(".walletSegwitType").attr('disabled',false);
+		} else {
+			$(".walletSegwitType").attr('disabled',true);
+		}	
+	});
+
 	$("#walletToSegWit").click(function(){
 		$("#walletToBtn").html('SegWit <span class="caret"></span>');
 		$("#walletSegwit")[0].checked = true;
+		$("#walletSegwitp2sh")[0].checked = true;
+		$("#openBtn").click();
+	});
+
+	$("#walletToSegWitBech32").click(function(){
+		$("#walletToBtn").html('Bech32 <span class="caret"></span>');
+		$("#walletSegwit")[0].checked = true;
+		$("#walletSegwitBech32")[0].checked = true;		
 		$("#openBtn").click();
 	});
 
@@ -106,7 +128,6 @@ $(document).ready(function() {
 		$("#openBtn").click();
 	});
 
-
 	$("#walletShowKeys").click(function(){
 		$("#walletKeys").removeClass("hidden");
 		$("#walletSpend").removeClass("hidden").addClass("hidden");
@@ -142,7 +163,11 @@ $(document).ready(function() {
 
 		var script = false;
 		if($("#walletSegwit").is(":checked")){
-			var sw = coinjs.segwitAddress($("#walletKeys .pubkey").val());
+			if($("#walletSegwitBech32").is(":checked")){
+				var sw = coinjs.bech32Address($("#walletKeys .pubkey").val());
+			} else {
+				var sw = coinjs.segwitAddress($("#walletKeys .pubkey").val());
+			}
 			script = sw.redeemscript;
 		}
 
@@ -699,24 +724,24 @@ $(document).ready(function() {
 			$.each($("#walletSpendTo .output"), function(i,o){
 				var addr = $('.addressTo',o);
 				var ad = coinjs.addressDecode(addr.val());
-				if (ad.version == coinjs.multisig){ // p2sh
-					$("#fees .txo_p2sh").val(($("#fees .txo_p2sh").val()*1)+1);
-					$("#fees .txo_p2sh").trigger('input');
-				} else { // p2pkh
+				if (ad.version == coinjs.pub){ // p2pkh
 					$("#fees .txo_p2pkh").val(($("#fees .txo_p2pkh").val()*1)+1);
 					$("#fees .txo_p2pkh").trigger('input');					
+				} else { // p2psh
+					$("#fees .txo_p2sh").val(($("#fees .txo_p2sh").val()*1)+1);
+					$("#fees .txo_p2sh").trigger('input');
 				}
 			});
 
 			if(($("#developerDonation").val()*1)>0){
 				var addr = coinjs.developer;
 				var ad = coinjs.addressDecode(addr);
-				if (ad.version == coinjs.multisig){ // p2sh
+				if (ad.version == coinjs.pub){ // p2pkh
+					$("#fees .txo_p2pkh").val(($("#fees .txo_p2pkh").val()*1)+1);
+					$("#fees .txo_p2pkh").trigger('input');	
+				} else { // p2psh
 					$("#fees .txo_p2sh").val(($("#fees .txo_p2sh").val()*1)+1);
 					$("#fees .txo_p2sh").trigger('input');
-				} else { // p2pkh
-					$("#fees .txo_p2pkh").val(($("#fees .txo_p2pkh").val()*1)+1);
-					$("#fees .txo_p2pkh").trigger('input');					
 				}
 			}
 
diff --git a/sha1sum b/sha1sum
index a0b0718..6fd8b72 100644
--- a/sha1sum
+++ b/sha1sum
@@ -1,9 +1,9 @@
----- Version 1.4 2018.05.27 ---
+---- Version 1.4 2018.06.11 ---
 77e4519962e2f6a9fc93342137dbb31c33b76b04  ./js/aes.js
 3a09a8fc0cfe828b57fc798d668234d0490ee1a6  ./js/bootstrap-datetimepicker.min.js
 253711c6d825de55a8360552573be950da180614  ./js/bootstrap.min.js
-dda26795fcd22541612067d44cf72ecae62f092b  ./js/coinbin.js
-eec3c5f1c5f69a34205613f6bf62ff9cc5a8d07a  ./js/coin.js
+988f99187ab356bc5d12b61572f463e1785c15c2  ./js/coinbin.js
+9b12eedab976f201ae5ee084701a038eebea5c9c  ./js/coin.js
 988565bc2cb402d63ed5c5fd7ff47c4278efc2c5  ./js/collapse.js
 9ba5ede3d7f9d4c8fd623395f196adfdcf7e970f  ./js/crypto-min.js
 f7c09f2f5a721371e7d478050119f7e2d58e3ef9  ./js/crypto-sha256-hmac.js
@@ -31,4 +31,4 @@ de51a8494180a6db074af2dee2383f0a363c5b08  ./fonts/glyphicons-halflings-regular.s
 278e49a86e634da6f2a02f3b47dd9d2a8f26210f  ./fonts/glyphicons-halflings-regular.woff
 44bc1850f570972267b169ae18f1cb06b611ffa2  ./fonts/glyphicons-halflings-regular.ttf
 c024021c71cba503979a859d23cbf7a88b570d82  ./README.md
-208b64a1ef61aaceec82f06515e4f7cf046793f6  ./index.html
+26552aac02a06e88b419539f93032de8a25e1edd  ./index.html