diff --git a/package-lock.json b/package-lock.json
index 1a496cc..ad8a13c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
         "@rollup/plugin-terser": "^0.4.3",
         "@rollup/plugin-typescript": "^11.1.3",
         "@types/pako": "^2.0.1",
-        "@types/w3c-web-serial": "^1.0.3",
+        "@types/w3c-web-serial": "^1.0.4",
         "prettier": "^3.0.3",
         "rollup": "^3.29.3",
         "serve": "^14.2.1",
@@ -229,9 +229,9 @@
       "dev": true
     },
     "node_modules/@types/w3c-web-serial": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/@types/w3c-web-serial/-/w3c-web-serial-1.0.3.tgz",
-      "integrity": "sha512-R4J/OjqKAUFQoXVIkaUTfzb/sl6hLh/ZhDTfowJTRMa7LhgEmI/jXV4zsL1u8HpNa853BxwNmDIr0pauizzwSQ==",
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/@types/w3c-web-serial/-/w3c-web-serial-1.0.4.tgz",
+      "integrity": "sha512-EbdEnJdDyLIHOkVqpGn0mIGGqZE6JFwKXHv2GbU/3UfjWvNLZ/HDUlisavLB6DrPhq5tqGyNDdFHb3FKJYXA9Q==",
       "dev": true
     },
     "node_modules/@zeit/schemas": {
diff --git a/package.json b/package.json
index 0411bd3..c0c30ba 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "@rollup/plugin-terser": "^0.4.3",
     "@rollup/plugin-typescript": "^11.1.3",
     "@types/pako": "^2.0.1",
-    "@types/w3c-web-serial": "^1.0.3",
+    "@types/w3c-web-serial": "^1.0.4",
     "prettier": "^3.0.3",
     "rollup": "^3.29.3",
     "serve": "^14.2.1",