diff --git a/yarn.lock b/yarn.lock
index c1c687a..9c85612 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -28,8 +28,8 @@ accepts@~1.3.4:
     negotiator "0.6.1"
 
 acorn@^5.0.0:
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.4.1.tgz#fdc58d9d17f4a4e98d102ded826a9b9759125102"
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
 
 ajv@^4.9.1:
   version "4.11.8"