diff --git a/src/yarn.lock b/src/yarn.lock
index 62fbca9..3a525a9 100644
--- a/src/yarn.lock
+++ b/src/yarn.lock
@@ -24,8 +24,8 @@ abbrev@1:
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
 
 acorn@5.X, acorn@^5.0.3:
-  version "5.5.3"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.3.tgz#f473dd47e0277a08e28e9bec5aeeb04751f0b8c9"
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
 
 ajv@^5.1.0:
   version "5.5.2"