diff --git a/packages/gateway-client-node/package.json b/packages/gateway-client-node/package.json
index 8025ade1..fff81f8d 100644
--- a/packages/gateway-client-node/package.json
+++ b/packages/gateway-client-node/package.json
@@ -19,7 +19,7 @@
   "dependencies": {
     "@cedalo/gateway-client": "2.4.0",
     "@cedalo/protocols": "2.4.0",
-    "ws": "7.1.0"
+    "ws": "7.4.6"
   },
   "devDependencies": {
     "babel-core": "6.25.0",
diff --git a/packages/gateway/package.json b/packages/gateway/package.json
index e00532cd..108497bb 100644
--- a/packages/gateway/package.json
+++ b/packages/gateway/package.json
@@ -63,7 +63,7 @@
     "supertest": "^4.0.2",
     "swagger-express-middleware": "^2.0.2",
     "uuid": "3.3.2",
-    "ws": "7.1.0"
+    "ws": "7.4.6"
   },
   "devDependencies": {
     "@cedalo/jsg-core": "2.4.0",
diff --git a/yarn.lock b/yarn.lock
index 1f429258..309c2517 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2922,7 +2922,7 @@ async-each@^1.0.0, async-each@^1.0.1:
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.3.tgz#b727dbf87d7651602f06f4d4ac387f47d91b0cbf"
   integrity sha512-z/WhQ5FPySLdvREByI2vZiTWwCnF0moMJ1hK9YQwDTHKh6I7/uSckMetoRGb5UBZPC1z0jlw+n/XCgjeH7y1AQ==
 
-async-limiter@^1.0.0, async-limiter@~1.0.0:
+async-limiter@~1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.1.tgz#dd379e94f0db8310b08291f9d64c3209766617fd"
   integrity sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ==
@@ -20557,12 +20557,10 @@ write@1.0.3:
   dependencies:
     mkdirp "^0.5.1"
 
-ws@7.1.0:
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-7.1.0.tgz#0395646c6fcc3ac56abf61ce1a42039637a6bd98"
-  integrity sha512-Swie2C4fs7CkwlHu1glMePLYJJsWjzhl1vm3ZaLplD0h7OMkZyZ6kLTB/OagiU923bZrPFXuDTeEqaEN4NWG4g==
-  dependencies:
-    async-limiter "^1.0.0"
+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==
 
 ws@^5.2.0:
   version "5.2.2"
@@ -20578,12 +20576,7 @@ ws@^6.0.0:
   dependencies:
     async-limiter "~1.0.0"
 
-ws@^7.0.0:
-  version "7.3.0"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-7.3.0.tgz#4b2f7f219b3d3737bc1a2fbf145d825b94d38ffd"
-  integrity sha512-iFtXzngZVXPGgpTlP1rBqsUK82p9tKqsWRPg5L56egiljujJT3vGAYnHANvFxBieXrTFavhzhxW52jnaWV+w2w==
-
-ws@^7.5.0:
+ws@^7.0.0, ws@^7.5.0:
   version "7.5.2"
   resolved "https://registry.yarnpkg.com/ws/-/ws-7.5.2.tgz#09cc8fea3bec1bc5ed44ef51b42f945be36900f6"
   integrity sha512-lkF7AWRicoB9mAgjeKbGqVUekLnSNO4VjKVnuPHpQeOxZOErX6BPXwJk70nFslRCEEA8EVW7ZjKwXaP9N+1sKQ==