diff --git a/src/loadtest/swarm/package.json b/src/loadtest/swarm/package.json
index 0b07226ab..00afea14c 100644
--- a/src/loadtest/swarm/package.json
+++ b/src/loadtest/swarm/package.json
@@ -17,7 +17,7 @@
   "dependencies": {
     "lib0": "0.2.114",
     "prom-client": "15.1.3",
-    "ws": "8.18.3",
+    "ws": "8.21.0",
     "y-protocols": "1.0.7",
     "y-websocket": "3.1.0",
     "yjs": "13.6.32"
diff --git a/src/loadtest/swarm/yarn.lock b/src/loadtest/swarm/yarn.lock
index e73fc49a8..236863435 100644
--- a/src/loadtest/swarm/yarn.lock
+++ b/src/loadtest/swarm/yarn.lock
@@ -1316,10 +1316,10 @@ word-wrap@^1.2.5:
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.5.tgz#d2c45c6dd4fbce621a66f136cbe328afd0410b34"
   integrity sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA==
 
-ws@8.18.3:
-  version "8.18.3"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-8.18.3.tgz#b56b88abffde62791c639170400c93dcb0c95472"
-  integrity sha512-PEIGCY5tSlUt50cqyMXfCzX+oOPqN0vuGqWzbcJ2xvnkzkq46oOpz7dQaTDBdfICb4N14+GARUDw2XV2N4tvzg==
+ws@8.21.0:
+  version "8.21.0"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-8.21.0.tgz#012e413fc07429945121b0c153158c4343086951"
+  integrity sha512-Vsp28b7DRcimFQvrqu2Wek3z1iYxDCWqHYB8Qsnk/S4RfaCQzPGPyBNuVjJV3cd6UiKtUtp6sNM77gWvzcCH+g==
 
 y-protocols@1.0.7, y-protocols@^1.0.5:
   version "1.0.7"