diff --git a/react/todomvc/yarn.lock b/react/todomvc/yarn.lock
index 9be4ede..3337a12 100644
--- a/react/todomvc/yarn.lock
+++ b/react/todomvc/yarn.lock
@@ -83,8 +83,8 @@ accepts@~1.3.5:
     negotiator "0.6.1"
 
 acorn@^5.0.0:
-  version "5.7.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
 
 alphanum-sort@^1.0.0, alphanum-sort@^1.0.1, alphanum-sort@^1.0.2:
   version "1.0.2"