diff --git a/yarn.lock b/yarn.lock
index b394643..0f7078a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -118,8 +118,8 @@ acorn-globals@^4.1.0:
     acorn "^5.0.0"
 
 acorn@^5.0.0, acorn@^5.5.3:
-  version "5.7.2"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.2.tgz#91fa871883485d06708800318404e72bfb26dcc5"
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
 
 ajv@^5.3.0:
   version "5.5.2"