diff --git a/package.json b/package.json
index 742381d..dd2b5e7 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": "^4.0.1",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
     "react-leaflet": "^2.4.0",
diff --git a/yarn.lock b/yarn.lock
index 7b0345e..e718d34 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@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/mqtt/-/mqtt-4.0.1.tgz#8bffa46b2b365a459c0bedd90267645418d0f2a5"
+  integrity sha512-sDvB/wI8e3YSSdIxJ74M81lQTFXxg1uFM5/irpQL+IH9crQiW90R69YOnk7UGj9xCqoXBBRPr8fqnkzQUKRYgg==
   dependencies:
     base64-js "^1.3.0"
     commist "^1.0.0"