diff --git a/yarn.lock b/yarn.lock
index d7e4534..201d2d1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -69,8 +69,8 @@ acorn-es7-plugin@^1.0.12:
   resolved "https://registry.yarnpkg.com/acorn-es7-plugin/-/acorn-es7-plugin-1.1.7.tgz#f2ee1f3228a90eead1245f9ab1922eb2e71d336b"
 
 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"
 
 ansi-regex@^2.0.0:
   version "2.1.1"