diff --git a/package-lock.json b/package-lock.json
index 0090595..e1187c7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,75 +5,81 @@
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@@ -406,6 +417,15 @@
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+          "integrity": "sha512-brv7p5WgH0jmQJr1ZDDfKDOSeWWg+OVypG99A/5vYGPqJ6pxiaHLy8nxtFjBA7oMa01ebA9gfh1uMCFqOuXxvA==",
+          "requires": {
+            "decompress-response": "^6.0.0",
+            "once": "^1.3.1",
+            "simple-concat": "^1.0.0"
+          }
+        },
+        "tar-fs": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.1.tgz",
+          "integrity": "sha512-V0r2Y9scmbDRLCNex/+hYzvp/zyYjvFbHPNgVTKfQvVrb6guiE/fxP+XblDNR011utopbkex2nM4dHNV6GDsng==",
+          "requires": {
+            "chownr": "^1.1.1",
+            "mkdirp-classic": "^0.5.2",
+            "pump": "^3.0.0",
+            "tar-stream": "^2.1.4"
+          }
+        },
+        "tar-stream": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-2.2.0.tgz",
+          "integrity": "sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==",
+          "requires": {
+            "bl": "^4.0.3",
+            "end-of-stream": "^1.4.1",
+            "fs-constants": "^1.0.0",
+            "inherits": "^2.0.3",
+            "readable-stream": "^3.1.1"
+          }
         }
       }
     },
@@ -1621,19 +1765,19 @@
       "integrity": "sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA=="
     },
     "serialport": {
-      "version": "7.1.5",
-      "resolved": "https://registry.npmjs.org/serialport/-/serialport-7.1.5.tgz",
-      "integrity": "sha512-NplGdqaY+ZL8t3t5egbT+3oqLW4d7WvDT/x1ACxAyWa1fSnx+KTAmlDHeCls39lXwu8voaOr3bPOW4bwM7PdAA==",
-      "requires": {
-        "@serialport/binding-mock": "^2.0.5",
-        "@serialport/bindings": "^2.0.8",
-        "@serialport/parser-byte-length": "^2.0.2",
-        "@serialport/parser-cctalk": "^2.0.2",
-        "@serialport/parser-delimiter": "^2.0.2",
-        "@serialport/parser-readline": "^2.0.2",
-        "@serialport/parser-ready": "^2.0.2",
-        "@serialport/parser-regex": "^2.0.2",
-        "@serialport/stream": "^2.0.5",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/serialport/-/serialport-9.0.0.tgz",
+      "integrity": "sha512-4kQqIM0XhT6QECyzJtPdSsDWRFt8u3/vscQxb+z4TrAMiPDkDGBTLDaXmCxarXDa1s7EeK1IyxMce9wzWPFzAQ==",
+      "requires": {
+        "@serialport/binding-mock": "^9.0.0",
+        "@serialport/bindings": "^9.0.0",
+        "@serialport/parser-byte-length": "^9.0.0",
+        "@serialport/parser-cctalk": "^9.0.0",
+        "@serialport/parser-delimiter": "^9.0.0",
+        "@serialport/parser-readline": "^9.0.0",
+        "@serialport/parser-ready": "^9.0.0",
+        "@serialport/parser-regex": "^9.0.0",
+        "@serialport/stream": "^9.0.0",
         "debug": "^4.1.1"
       }
     },
@@ -1996,6 +2140,11 @@
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
+    },
+    "yallist": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A=="
     }
   }
 }
diff --git a/package.json b/package.json
index 69c66db..9947a1f 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,6 @@
   "license": "MIT",
   "dependencies": {
     "nodemcu-tool": "^3.0.2",
-    "serialport": "^7.1.5"
+    "serialport": "^9.0.0"
   }
 }