diff --git a/guides/drain-safe-app/app/yarn.lock b/guides/drain-safe-app/app/yarn.lock
index 73cc3d0a..b3d17678 100644
--- a/guides/drain-safe-app/app/yarn.lock
+++ b/guides/drain-safe-app/app/yarn.lock
@@ -10149,9 +10149,9 @@ webidl-conversions@^6.1.0:
   integrity sha512-qBIvFLGiBpLjfwmYAaHPXsn+ho5xZnGvyGvsarywGNc8VyQJUMHJ8OBKGGrPER0okBeMDaan4mNBlgBROxuI8w==
 
 webpack-dev-middleware@^5.3.1:
-  version "5.3.3"
-  resolved "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-5.3.3.tgz"
-  integrity sha512-hj5CYrY0bZLB+eTO+x/j67Pkrquiy7kWepMHmUMoPsmcUaeEnQJqFzHJOyxgWlq746/wUuA64p9ta34Kyb01pA==
+  version "5.3.4"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-5.3.4.tgz#eb7b39281cbce10e104eb2b8bf2b63fce49a3517"
+  integrity sha512-BVdTqhhs+0IfoeAf7EoH5WE+exCmqGerHfDM0IL096Px60Tq2Mn9MAbnaGUe6HiMa41KMCYF19gyzZmBcq/o4Q==
   dependencies:
     colorette "^2.0.10"
     memfs "^3.4.3"