diff --git a/old/02-serverless-api-ecs-apigateway/client-application-react/yarn.lock b/old/02-serverless-api-ecs-apigateway/client-application-react/yarn.lock
index f60da98..2383c65 100644
--- a/old/02-serverless-api-ecs-apigateway/client-application-react/yarn.lock
+++ b/old/02-serverless-api-ecs-apigateway/client-application-react/yarn.lock
@@ -5113,9 +5113,9 @@ bowser@^2.11.0:
   integrity sha512-AlcaJBi/pqqJBIQ8U9Mcpc9i8Aqxn88Skv5d+xBX006BY5u8N3mGLHa5Lgppa7L/HfwgwLgZ6NYs+Ag6uUmJRA==
 
 brace-expansion@^1.1.7:
-  version "1.1.16"
-  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.16.tgz#723d3a30c0558c225abc9fc479a73e14e26c3c2f"
-  integrity sha512-IDw48K2/2kRkg9LdJxurvq3lV3aBgq0REY89duEqFRthjlPdXHKMj7EnQOXVckxzgisinf3nHfrcE2FufFLXMw==
+  version "1.1.21"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.21.tgz#edf4fab5c64d051aea5a8def49aba1c7522279f3"
+  integrity sha512-9zeA+KLZNNzglF2TPKRQEDyx6Yby7daAkuy8MiPzpXPsYDWi/DRM8jmwUDxokQjYqBpv5DgPiwD4h4ZZSy1Ujw==
   dependencies:
     balanced-match "^1.0.0"
     concat-map "0.0.1"