diff --git a/yarn.lock b/yarn.lock
index 3a2614c..efe5fa4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -85,8 +85,8 @@ acorn-jsx@^5.0.0:
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.0.1.tgz#32a064fd925429216a09b141102bfdd185fae40e"
 
 acorn@^6.0.2:
-  version "6.0.5"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.0.5.tgz#81730c0815f3f3b34d8efa95cb7430965f4d887a"
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.4.1.tgz#531e58ba3f51b9dacb9a6646ca4debf5b14ca474"
 
 ajv@^6.5.3, ajv@^6.6.1:
   version "6.6.2"