diff --git a/libtransmission/peer-io.cc b/libtransmission/peer-io.cc
index 2c462d91b..70ffd5bb0 100644
--- a/libtransmission/peer-io.cc
+++ b/libtransmission/peer-io.cc
@@ -729,7 +729,7 @@ void tr_peerIo::utp_init([[maybe_unused]] struct_utp_context* ctx)
         {
             if (auto* const io = static_cast<tr_peerIo*>(utp_get_userdata(args->socket)); io != nullptr)
             {
-                io->on_utp_error(args->u1.error_code);
+                io->on_utp_error(args->error_code);
             }
             return {};
         });
@@ -742,7 +742,7 @@ void tr_peerIo::utp_init([[maybe_unused]] struct_utp_context* ctx)
             if (auto* const io = static_cast<tr_peerIo*>(utp_get_userdata(args->socket)); io != nullptr)
             {
                 tr_logAddTraceIo(io, fmt::format("{:d} overhead bytes via utp", args->len));
-                io->bandwidth().notifyBandwidthConsumed(args->u1.send != 0 ? TR_UP : TR_DOWN, args->len, false, tr_time_msec());
+                io->bandwidth().notifyBandwidthConsumed(args->send != 0 ? TR_UP : TR_DOWN, args->len, false, tr_time_msec());
             }
             return {};
         });
@@ -754,7 +754,7 @@ void tr_peerIo::utp_init([[maybe_unused]] struct_utp_context* ctx)
         {
             if (auto* const io = static_cast<tr_peerIo*>(utp_get_userdata(args->socket)); io != nullptr)
             {
-                io->on_utp_state_change(args->u1.state);
+                io->on_utp_state_change(args->state);
             }
             return {};
         });
diff --git a/libtransmission/tr-utp.cc b/libtransmission/tr-utp.cc
index 32a09a1a3..b26aa83fa 100644
--- a/libtransmission/tr-utp.cc
+++ b/libtransmission/tr-utp.cc
@@ -134,7 +134,7 @@ uint64 utp_callback(utp_callback_arguments* args)
         break;
 
     case UTP_SENDTO:
-        utp_send_to(session, args->buf, args->len, args->u1.address, args->u2.address_len);
+        utp_send_to(session, args->buf, args->len, args->address, args->address_len);
         break;
     }
 
diff --git a/third-party/libutp b/third-party/libutp
index 420e697ac..c95738b1a 160000
--- a/third-party/libutp
+++ b/third-party/libutp
@@ -1 +1 @@
-Subproject commit 420e697ac4f3d70005a85e3cfd8b022e2bd5b060
+Subproject commit c95738b1a6644b919e5b64d3ea9736cfc5894e0b