diff --git a/yarn.lock b/yarn.lock
index 2d27f4b..b7e2eaf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -102,8 +102,8 @@ accepts@~1.3.4:
     negotiator "0.6.1"
 
 acorn@^5.0.0:
-  version "5.5.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.0.tgz#1abb587fbf051f94e3de20e6b26ef910b1828298"
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
 
 ajv@^4.9.1:
   version "4.11.8"