diff --git a/package-lock.json b/package-lock.json
index d24aa78..f0be8b9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -39,7 +39,7 @@
         "unist-util-visit": "^5.1.0",
         "vfile": "^6.0.3",
         "workerpool": "^10.0.1",
-        "ws": "^8.19.0",
+        "ws": "^8.21.1",
         "yaml": "^2.8.2",
         "yargs": "^18.0.0"
       },
@@ -5825,9 +5825,9 @@
       "license": "ISC"
     },
     "node_modules/ws": {
-      "version": "8.19.0",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-8.19.0.tgz",
-      "integrity": "sha512-blAT2mjOEIi0ZzruJfIhb3nps74PRWTCz1IjglWEEpQl5XS/UNama6u2/rjFkDDouqr4L67ry+1aGIALViWjDg==",
+      "version": "8.21.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.21.1.tgz",
+      "integrity": "sha512-+0NTnW77fFN/DjQi6k/Sq/Yvk4Sgajw7urW8V+asjXnRgDs9gyGkdb7EzgfhA4goXsRIZKE28fzIXBHEzhuiWw==",
       "license": "MIT",
       "engines": {
         "node": ">=10.0.0"
diff --git a/package.json b/package.json
index 8a890ec..5a2441d 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "unist-util-visit": "^5.1.0",
     "vfile": "^6.0.3",
     "workerpool": "^10.0.1",
-    "ws": "^8.19.0",
+    "ws": "^8.21.1",
     "yaml": "^2.8.2",
     "yargs": "^18.0.0"
   },