diff --git a/package.json b/package.json
index 2ba0ecd..9c47257 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "node-zip": "1.0.1",
     "open": "^6.3.0",
     "qrcodejs": "^1.0.0",
-    "ws": "^7.4.6"
+    "ws": "^7.5.10"
   },
   "keywords": [
     "FeliCa",
diff --git a/yarn.lock b/yarn.lock
index 2effc25..fd43d27 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -511,7 +511,7 @@ vary@~1.1.2:
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
   integrity sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==
 
-ws@^7.4.6:
-  version "7.5.9"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-7.5.9.tgz#54fa7db29f4c7cec68b1ddd3a89de099942bb591"
-  integrity sha512-F+P9Jil7UiSKSkppIiD94dN07AwvFixvLIj1Og1Rl9GGMuNipJnV9JzjD6XuqmAeiswGvUmNLjr5cFuXwNS77Q==
+ws@^7.5.10:
+  version "7.5.10"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-7.5.10.tgz#58b5c20dc281633f6c19113f39b349bd8bd558d9"
+  integrity sha512-+dbF1tHwZpXcbOJdVOkzLDxZP1ailvSxM6ZweXTegylPny803bFhA+vqBYw4s31NSAk4S2Qz+AKXK9a4wkdjcQ==