diff --git a/react/yarn.lock b/react/yarn.lock
index 4aefc15..b840dbe 100644
--- a/react/yarn.lock
+++ b/react/yarn.lock
@@ -2883,8 +2883,8 @@ ast-types-flow@^0.0.7:
   resolved "https://registry.npmjs.org/ast-types-flow/-/ast-types-flow-0.0.7.tgz"
 
 async@^2.6.2:
-  version "2.6.3"
-  resolved "https://registry.npmjs.org/async/-/async-2.6.3.tgz"
+  version "2.6.4"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.4.tgz#706b7ff6084664cd7eae713f6f965433b5504221"
   dependencies:
     lodash "^4.17.14"