diff --git a/package.json b/package.json
index a5d69d1..9892a0f 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,6 @@
     "request-promise-native": "^1.0.7",
     "uuid": "^3.3.2",
     "web3": "1.0.0-beta.37",
-    "ws": "^7.1.0"
+    "ws": "^7.4.6"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 992fe1d..4d22390 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -255,7 +255,7 @@ assert-plus@1.0.0, assert-plus@^1.0.0:
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
   integrity sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=
 
-async-limiter@^1.0.0, async-limiter@~1.0.0:
+async-limiter@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.0.tgz#78faed8c3d074ab81f22b4e985d79e8738f720f8"
   integrity sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==
@@ -2804,12 +2804,10 @@ ws@^3.0.0:
     safe-buffer "~5.1.0"
     ultron "~1.1.0"
 
-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==
 
 xhr-request-promise@^0.1.2:
   version "0.1.2"