diff --git a/modules/bitmex-realtime-api/yarn.lock b/modules/bitmex-realtime-api/yarn.lock
index cf267b4..cc04ce8 100644
--- a/modules/bitmex-realtime-api/yarn.lock
+++ b/modules/bitmex-realtime-api/yarn.lock
@@ -43,8 +43,8 @@ eventemitter2@^5.0.1:
   resolved "https://registry.yarnpkg.com/eventemitter2/-/eventemitter2-5.0.1.tgz#6197a095d5fb6b57e8942f6fd7eaad63a09c9452"
 
 extend@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.0.tgz#5a474353b9f3353ddd8176dfd37b91c83a46f1d4"
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
 
 form-data@^2.3.1:
   version "2.3.2"