diff --git a/package-lock.json b/package-lock.json
index 6fde271..26073d9 100644
--- a/package-lock.json
+++ b/package-lock.json
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-      "requires": {
-        "async-limiter": "~1.0.0",
-        "safe-buffer": "~5.1.0",
-        "ultron": "~1.1.0"
-      }
+      "version": "7.4.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.3.tgz",
+      "integrity": "sha512-hr6vCR76GsossIRsr8OLR9acVVm1jyfEWvhbNjtgPOrfvAlKzvyeg/P6r8RuDjRyrcQoPQT7K0DGEPc7Ae6jzA=="
     },
     "xtend": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
-      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
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     "y18n": {
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diff --git a/package.json b/package.json
index 0aa04ec..8c6be76 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   "dependencies": {
     "debug": "^4.0.1",
     "express": "^4.16.3",
-    "mqtt": "^2.18.2",
+    "mqtt": "^4.2.6",
     "@abandonware/noble": "^1.9.2-1",
     "readline-sync": "^1.4.9",
     "yargs": "^13.2.2"