diff --git a/lib/plugins/common/json-rpc.js b/lib/plugins/common/json-rpc.js
index 5a5434c2..d88823be 100644
--- a/lib/plugins/common/json-rpc.js
+++ b/lib/plugins/common/json-rpc.js
@@ -4,7 +4,6 @@ const uuid = require('uuid')
 const fs = require('fs')
 const _ = require('lodash/fp')
 const request = require('request-promise')
-const Queue = require('queue-promise')
 const { utils: coinUtils } = require('@lamassu/coins')
 
 const options = require('../../options')
@@ -12,7 +11,7 @@ const options = require('../../options')
 const blockchainDir = options.blockchainDir
 
 module.exports = {
-  fetch, fetchDigest, createDigestRequest, parseConf, rpcConfig
+  fetch, fetchDigest, parseConf, rpcConfig
 }
 
 function fetch (account = {}, method, params) {
@@ -50,17 +49,6 @@ function fetch (account = {}, method, params) {
     })
 }
 
-const DIGEST_QUEUE = new Queue({
-  concurrent: 1,
-  interval: 100,
-  start: false
-})
-
-function createDigestRequest (account = {}, method, params = []) {
-  DIGEST_QUEUE.enqueue(() => fetchDigest(account, method, params))
-  return DIGEST_QUEUE.dequeue()
-}
-
 function generateDigestOptions (account = {}, method, params) {
   const headers = {
     'Content-Type': 'application/json'
@@ -93,11 +81,6 @@ function fetchDigest(account = {}, method, params = []) {
       const options = generateDigestOptions(account, method, params)
       return request(options)
     })
-    .then((res) => {
-      const r = JSON.parse(res)
-      if (r.error) throw r.error
-      return r.result
-    })
 }
 
 function split (str) {
diff --git a/lib/plugins/wallet/monerod/monerod.js b/lib/plugins/wallet/monerod/monerod.js
index d70cf1de..f6f17fcd 100644
--- a/lib/plugins/wallet/monerod/monerod.js
+++ b/lib/plugins/wallet/monerod/monerod.js
@@ -1,14 +1,14 @@
 const fs = require('fs')
 const path = require('path')
 const _ = require('lodash/fp')
-const jsonRpc = require('../../common/json-rpc')
-
 const { COINS, utils } = require('@lamassu/coins')
+const { default: PQueue } = require('p-queue')
 
 const BN = require('../../../bn')
 const E = require('../../../error')
 const { logger } = require('../../../blockchain/common')
 const options = require('../../../options')
+const jsonRpc = require('../../common/json-rpc')
 
 const blockchainDir = options.blockchainDir
 
@@ -16,6 +16,21 @@ const cryptoRec = utils.getCryptoCurrency(COINS.XMR)
 const configPath = utils.configPath(cryptoRec, blockchainDir)
 const walletDir = path.resolve(utils.cryptoDir(cryptoRec, blockchainDir), 'wallets')
 
+const DIGEST_QUEUE = new PQueue({
+  concurrency: 1,
+  interval: 150,
+})
+
+function createDigestRequest (account = {}, method, params = []) {
+  return DIGEST_QUEUE.add(() => jsonRpc.fetchDigest(account, method, params)
+    .then(res => {
+      const r = JSON.parse(res)
+      if (r.error) throw r.error
+      return r.result
+    })
+  )
+}
+
 function rpcConfig () {
   try {
     const config = jsonRpc.parseConf(configPath)
@@ -30,7 +45,7 @@ function rpcConfig () {
 }
 
 function fetch (method, params) {
-  return jsonRpc.createDigestRequest(rpcConfig(), method, params)
+  return createDigestRequest(rpcConfig(), method, params)
 }
 
 function handleError (error, method) {
@@ -81,6 +96,7 @@ function checkCryptoCode (cryptoCode) {
 
 function refreshWallet () {
   return fetch('refresh')
+    .catch(err => handleError(err, 'refreshWallet'))
 }
 
 function accountBalance (cryptoCode) {
diff --git a/package-lock.json b/package-lock.json
index 7e40ef8a..287d29d3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16652,6 +16652,22 @@
         "aggregate-error": "^3.0.0"
       }
     },
+    "p-queue": {
+      "version": "6.6.2",
+      "resolved": "https://registry.npmjs.org/p-queue/-/p-queue-6.6.2.tgz",
+      "integrity": "sha512-RwFpb72c/BhQLEXIZ5K2e+AhgNVmIejGlTgiB9MzZ0e93GRvqZ7uSi0dvRF7/XIXDeNkra2fNHBxTyPDGySpjQ==",
+      "requires": {
+        "eventemitter3": "^4.0.4",
+        "p-timeout": "^3.2.0"
+      },
+      "dependencies": {
+        "eventemitter3": {
+          "version": "4.0.7",
+          "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.7.tgz",
+          "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw=="
+        }
+      }
+    },
     "p-reduce": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/p-reduce/-/p-reduce-1.0.0.tgz",
@@ -16666,6 +16682,14 @@
         "retry": "^0.12.0"
       }
     },
+    "p-timeout": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/p-timeout/-/p-timeout-3.2.0.tgz",
+      "integrity": "sha512-rhIwUycgwwKcP9yTOOFK/AKsAopjjCakVqLHePO3CC6Mir1Z99xT+R63jZxAT5lFZLa2inS5h+ZS2GvR99/FBg==",
+      "requires": {
+        "p-finally": "^1.0.0"
+      }
+    },
     "p-try": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
diff --git a/package.json b/package.json
index f8795919..1aeb198f 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,7 @@
   "license": "Unlicense",
   "author": "Lamassu (https://lamassu.is)",
   "dependencies": {
+    "@lamassu/coins": "1.0.0-beta.2",
     "@simplewebauthn/server": "^3.0.0",
     "apollo-server-express": "2.25.1",
     "argon2": "0.28.2",
@@ -45,7 +46,6 @@
     "helmet": "^3.8.1",
     "inquirer": "^5.2.0",
     "json2csv": "^5.0.3",
-    "@lamassu/coins": "1.0.0-beta.2",
     "libphonenumber-js": "^1.7.38",
     "lnd-async": "^1.8.0",
     "lodash": "^4.17.10",
@@ -63,6 +63,7 @@
     "numeral": "^2.0.3",
     "otplib": "^12.0.1",
     "p-each-series": "^1.0.0",
+    "p-queue": "^6.6.2",
     "p-retry": "^4.4.0",
     "pg-native": "^3.0.0",
     "pg-promise": "^10.10.2",