diff --git a/sample_client/package-lock.json b/sample_client/package-lock.json
index f1cedad..5b118f9 100644
--- a/sample_client/package-lock.json
+++ b/sample_client/package-lock.json
@@ -10,9 +10,9 @@
       "integrity": "sha1-z9mIWOJJhnE0d3Xv47tRQfRsh9Y="
     },
     "ws": {
-      "version": "7.4.6",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
-      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A=="
+      "version": "7.5.10",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.10.tgz",
+      "integrity": "sha512-+dbF1tHwZpXcbOJdVOkzLDxZP1ailvSxM6ZweXTegylPny803bFhA+vqBYw4s31NSAk4S2Qz+AKXK9a4wkdjcQ=="
     }
   }
 }
diff --git a/sample_client/package.json b/sample_client/package.json
index 82ea1d3..f0b90eb 100644
--- a/sample_client/package.json
+++ b/sample_client/package.json
@@ -5,7 +5,7 @@
   "main": "wsclient.js",
   "dependencies": {
     "sillyname": "^0.1.0",
-    "ws": "^7.4.6"
+    "ws": "^7.5.10"
   },
   "devDependencies": {},
   "scripts": {