diff --git a/package.json b/package.json
index 742381d..9acd4f0 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@mdi/font": "^4.0.96",
     "leaflet": "^1.5.1",
     "lodash-es": "^4.17.15",
-    "mqtt": "^3.0.0",
+    "mqtt": "^4.0.0",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
     "react-leaflet": "^2.4.0",
diff --git a/yarn.lock b/yarn.lock
index 7b0345e..b47fd5e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4511,9 +4511,10 @@ mqtt-packet@^6.0.0:
     process-nextick-args "^2.0.0"
     safe-buffer "^5.1.2"
 
-mqtt@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/mqtt/-/mqtt-3.0.0.tgz#7961e5f61efba3eec37d5aa9c4cbcdeb6f841380"
+mqtt@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/mqtt/-/mqtt-4.0.0.tgz#66612c619c942f88d8c239eeced2e08c65e8fb68"
+  integrity sha512-sRfKhSNK4yetSO9EyeXCNByKJiNW9XMtv214sEaXA2cUgeB+DWq9aKOxAdbW1rRbxjiqXPZYyjwt214TTgh0cA==
   dependencies:
     base64-js "^1.3.0"
     commist "^1.0.0"