diff --git a/xtr.pl b/xtr.pl
index 10efdfa..2e81b4d 100644
--- a/xtr.pl
+++ b/xtr.pl
@@ -10,7 +10,7 @@ use Socket;
 use DBI;
 use File::Fetch;
 use PerlIO::gzip;
-use LWP::UserAgent;
+use HTTP::Tiny;
 use HTTP::Request;
 use Data::Validate::IP qw(is_ipv4);
 use Data::Dumper;
@@ -31,6 +31,10 @@ use Data::Dumper;
 
 
 ###  CHANGELOG  ######################################################################################################################################
+# v0.6 (2019-08-22)
+#      * FIX: replaced bug-driven LWP::* with HTTP::Tiny
+#      * FIX: client_protocol_version moved from "3" to "4"
+#
 # v0.5 (2019-08-18)
 #      * FIX: dropped "timeout" option of Net::Traceroute (details -> https://rt.cpan.org/Ticket/Display.html?id=107066)
 #      * FIX: altered dependency on which an output will be send ("$tr->found" -> "$tr->hops > 1") 
@@ -62,12 +66,12 @@ use Data::Dumper;
 
 
 ###  VARS  ###########################################################################################################################################
-my $VERSION = "0.5";
+my $VERSION = "0.6";
 my $dbfile = 'ip2asn.db';
 my $ip2asn_csv_url = 'http://iptoasn.com/data/ip2asn-v4-u32.tsv.gz';
 my $master_server = 'xtr-master.xicon.eu';
 my $get_my_ip_service = 'http://ipv4.xicon.eu/'; # some service, which returns just the ip of the requesting host (in this case, us.)
-my $client_protocol_version = 3;
+my $client_protocol_version = 4;
 my $my_ip = get_my_ipv4($get_my_ip_service);
 my $my_ext_ip = ""; # set different ip, if access differs from default public ip
 my $my_port = 12111;
@@ -136,20 +140,19 @@ sub send_server_status
 {
 	my ($master_server,$hostname,$port,$status) = @_;
 	my $url = "http://".$master_server."/v3/server/add/".$hostname."/".$port."/".$status;
-	my $ua = LWP::UserAgent->new(timeout => 2);
-	my $req = HTTP::Request->new("PUT", $url);
-	my $response = $ua->request($req);
-	return $response->is_success;
+	my $httptiny = HTTP::Tiny->new("timeout" => 10);
+	my $response = $httptiny->request("PUT",$url);
+	return $response->{'success'};
 }
 
 sub get_my_ipv4
 {
 	my ($ip_service) = @_;
-	my $ua = LWP::UserAgent->new(timeout => 10);
-	my $response = $ua->get($ip_service);
-	if(is_ipv4($response->decoded_content))
+	my $httptiny = HTTP::Tiny->new("timeout" => 10);
+	my $response = $httptiny->request("GET",$ip_service);
+	if(is_ipv4($response->{'content'}))
 	{
-		return $response->decoded_content;
+		return $response->{'content'};
 	}
 	else
 	{