diff --git a/tools/dhtchat.cpp b/tools/dhtchat.cpp
index 3bd89f1c3ff928fd7d6c3a7b0661d545e3041a50..34ae65e937e6d39902d4f9a93ecf1c7b1e737313 100644
--- a/tools/dhtchat.cpp
+++ b/tools/dhtchat.cpp
@@ -45,7 +45,7 @@ void print_node_info(const DhtRunner& dht, const dht_params&) {
 void print_usage() {
     std::cout << "Usage: dhtchat [-n network_id] [-p local_port] [-b bootstrap_host[:port]]" << std::endl << std::endl;
     std::cout << "dhtchat, a simple OpenDHT command line chat client." << std::endl;
-    std::cout << "Report bugs to: http://opendht.net" << std::endl;
+    std::cout << "Report bugs to: https://opendht.net" << std::endl;
 }
 
 int
diff --git a/tools/dhtnode.cpp b/tools/dhtnode.cpp
index b0bc35d971c7cf3c1c4b0282bfe72305a8cc647f..8b7bb75f4ff155ec6c1520509738b81a228027ef 100644
--- a/tools/dhtnode.cpp
+++ b/tools/dhtnode.cpp
@@ -31,7 +31,7 @@ using namespace dht;
 void print_usage() {
     std::cout << "Usage: dhtnode [-v [-l logfile]] [-i] [-d] [-n network_id] [-p local_port] [-b bootstrap_host[:port]] [--proxyserver local_port]" << std::endl << std::endl;
     std::cout << "dhtnode, a simple OpenDHT command line node runner." << std::endl;
-    std::cout << "Report bugs to: http://opendht.net" << std::endl;
+    std::cout << "Report bugs to: https://opendht.net" << std::endl;
 }
 
 void print_id_req() {
diff --git a/tools/dhtscanner.cpp b/tools/dhtscanner.cpp
index 137378c01e43079946fec123cda51a210a4fa2b1..46baf5977d76f068e6aded11c77c0cca68dd40e3 100644
--- a/tools/dhtscanner.cpp
+++ b/tools/dhtscanner.cpp
@@ -32,7 +32,7 @@ using namespace dht;
 void print_usage() {
     std::cout << "Usage: dhtscanner [-n network_id] [-p local_port] [-b bootstrap_host[:port]]" << std::endl << std::endl;
     std::cout << "dhtscanner, a simple OpenDHT command line utility generating scan result the network." << std::endl;
-    std::cout << "Report bugs to: http://opendht.net" << std::endl;
+    std::cout << "Report bugs to: https://opendht.net" << std::endl;
 }
 
 struct snode_compare {