diff --git a/official-ws/delta-server/yarn.lock b/official-ws/delta-server/yarn.lock
index 0adf0acd2..9ecb06727 100644
--- a/official-ws/delta-server/yarn.lock
+++ b/official-ws/delta-server/yarn.lock
@@ -1139,9 +1139,9 @@ vary@~1.1.2:
   integrity sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=
 
 ws@^7.3.1:
-  version "7.4.5"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-7.4.5.tgz#a484dd851e9beb6fdb420027e3885e8ce48986c1"
-  integrity sha512-xzyu3hFvomRfXKH8vOFMU3OguG6oOvhXMo3xsGy3xWExqaM2dxBbVxuD99O7m3ZUFMvvscsZDqxfgMaRr/Nr1g==
+  version "7.4.6"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-7.4.6.tgz#5654ca8ecdeee47c33a9a4bf6d28e2be2980377c"
+  integrity sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==
 
 yallist@^4.0.0:
   version "4.0.0"