diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9123b96a..1e9a85c4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.7.2)
 
 project(
   KeepKeyFirmware
-  VERSION 7.9.1
+  VERSION 7.9.2
   LANGUAGES C CXX ASM)
 
 set(BOOTLOADER_MAJOR_VERSION 2)
diff --git a/deps/device-protocol b/deps/device-protocol
index f534ff20..b664c9ce 160000
--- a/deps/device-protocol
+++ b/deps/device-protocol
@@ -1 +1 @@
-Subproject commit f534ff20fddb63d274eee866acdadad65ca35cf6
+Subproject commit b664c9cea29d8fdd75edeb550c1d0293b2ddeafb
diff --git a/include/keepkey/firmware/mayachain.h b/include/keepkey/firmware/mayachain.h
index f2942f21..6c2cf2b5 100644
--- a/include/keepkey/firmware/mayachain.h
+++ b/include/keepkey/firmware/mayachain.h
@@ -11,7 +11,7 @@ typedef struct _MayachainSignTx MayachainSignTx;
 typedef struct _MayachainMsgDeposit MayachainMsgDeposit;
 
 bool mayachain_signTxInit(const HDNode *_node, const MayachainSignTx *_msg);
-bool mayachain_signTxUpdateMsgSend(const uint64_t amount, const char *to_address);
+bool mayachain_signTxUpdateMsgSend(const uint64_t amount, const char *to_address, const char *denom);
 bool mayachain_signTxUpdateMsgDeposit(const MayachainMsgDeposit *depmsg);
 bool mayachain_signTxFinalize(uint8_t *public_key, uint8_t *signature);
 bool mayachain_signingIsInited(void);
diff --git a/include/keepkey/transport/messages-mayachain.options b/include/keepkey/transport/messages-mayachain.options
index eff57e25..05fab267 100644
--- a/include/keepkey/transport/messages-mayachain.options
+++ b/include/keepkey/transport/messages-mayachain.options
@@ -8,6 +8,7 @@ MayachainSignTx.memo                                      max_size:256
 
 MayachainMsgSend.from_address                             max_size:46
 MayachainMsgSend.to_address                               max_size:46
+MayachainMsgSend.denom                                    max_size:69
 
 MayachainMsgDeposit.asset                                 max_size:20
 MayachainMsgDeposit.memo                                  max_size:256
diff --git a/lib/firmware/fsm_msg_mayachain.h b/lib/firmware/fsm_msg_mayachain.h
index 8d76e5d4..359e0e6d 100644
--- a/lib/firmware/fsm_msg_mayachain.h
+++ b/lib/firmware/fsm_msg_mayachain.h
@@ -119,7 +119,7 @@ void fsm_msgMayachainMsgAck(const MayachainMsgAck *msg) {
   // Confirm transaction basics
   // supports only 1 message ack
   CHECK_PARAM(mayachain_signingIsInited(), "Signing not in progress");
-  if (msg->has_send && msg->send.has_to_address && msg->send.has_amount) {
+  if (msg->has_send && msg->send.has_to_address && msg->send.has_amount && msg->send.has_denom) {
     // pass
   } else if (msg->has_deposit && msg->deposit.has_asset &&
              msg->deposit.has_amount && msg->deposit.has_memo &&
@@ -145,7 +145,9 @@ void fsm_msgMayachainMsgAck(const MayachainMsgAck *msg) {
       case OutputAddressType_TRANSFER:
       default: {
         char amount_str[32];
-        bn_format_uint64(msg->send.amount, NULL, " cacao", 10, 0, false,
+        char denom_str[71];
+        sprintf(denom_str, " %s", msg->send.denom);
+        bn_format_uint64(msg->send.amount, NULL, denom_str, 10, 0, false,
                          amount_str, sizeof(amount_str));
         if (!confirm_transaction_output(
                 ButtonRequestType_ButtonRequest_ConfirmOutput, amount_str,
@@ -160,7 +162,8 @@ void fsm_msgMayachainMsgAck(const MayachainMsgAck *msg) {
       }
     }
     if (!mayachain_signTxUpdateMsgSend(msg->send.amount,
-                                       msg->send.to_address)) {
+                                       msg->send.to_address,
+                                       msg->send.denom)) {
       mayachain_signAbort();
       fsm_sendFailure(FailureType_Failure_SyntaxError,
                       "Failed to include send message in transaction");
@@ -240,8 +243,8 @@ void fsm_msgMayachainMsgAck(const MayachainMsgAck *msg) {
   }
 
   if (!confirm(ButtonRequestType_ButtonRequest_SignTx, node_str,
-               "Sign this CACAO transaction on %s? "
-               "Additional network fees apply.",
+               "Sign this %s transaction on %s? "
+               "Additional network fees apply.", msg->has_send ? msg->send.denom : "CACAO",
                sign_tx->chain_id)) {
     mayachain_signAbort();
     fsm_sendFailure(FailureType_Failure_ActionCancelled, NULL);
diff --git a/lib/firmware/mayachain.c b/lib/firmware/mayachain.c
index 669fdfd2..e0b8a08e 100644
--- a/lib/firmware/mayachain.c
+++ b/lib/firmware/mayachain.c
@@ -95,7 +95,8 @@ bool mayachain_signTxInit(const HDNode *_node, const MayachainSignTx *_msg) {
 }
 
 bool mayachain_signTxUpdateMsgSend(const uint64_t amount,
-                                   const char *to_address) {
+                                   const char *to_address,
+                                   const char *denom) {
   char mainnetp[] = "maya";
   char testnetp[] = "smaya";
   char *pfix;
@@ -124,10 +125,10 @@ bool mayachain_signTxUpdateMsgSend(const uint64_t amount,
   const char *const prelude = "{\"type\":\"mayachain/MsgSend\",\"value\":{";
   sha256_Update(&ctx, (uint8_t *)prelude, strlen(prelude));
 
-  // 21 + ^20 + 19 = ^60
+  // 21 + ^20 + 11 + ^69 + 3 = ^124
   success &= tendermint_snprintf(
       &ctx, buffer, sizeof(buffer),
-      "\"amount\":[{\"amount\":\"%" PRIu64 "\",\"denom\":\"cacao\"}]", amount);
+      "\"amount\":[{\"amount\":\"%" PRIu64 "\",\"denom\":\"%s\"}]", amount, denom);
 
   // 17 + 45 + 1 = 63
   success &= tendermint_snprintf(&ctx, buffer, sizeof(buffer),