diff --git a/package.json b/package.json
index 1960dae3..1674d436 100644
--- a/package.json
+++ b/package.json
@@ -110,7 +110,7 @@
     "webpack-cli": "3.3.5",
     "webpack-messages": "^2.0.4",
     "withstyles": "^1.0.3",
-    "ws": "^7.3.1",
+    "ws": "^7.4.6",
     "yargs": "^12.0.2"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index dc91bf99..24a2f0e9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11843,10 +11843,10 @@ ws@^5.2.0:
   dependencies:
     async-limiter "~1.0.0"
 
-ws@^7.3.1:
-  version "7.3.1"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-7.3.1.tgz#d0547bf67f7ce4f12a72dfe31262c68d7dc551c8"
-  integrity sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA==
+ws@^7.4.6:
+  version "7.4.6"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-7.4.6.tgz#5654ca8ecdeee47c33a9a4bf6d28e2be2980377c"
+  integrity sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==
 
 x256@>=0.0.1, x256@~0.0.1:
   version "0.0.2"