diff --git a/yarn.lock b/yarn.lock
index 7a42fb3..ecbf00c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -532,8 +532,8 @@ acorn@^3.0.4:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
 
 acorn@^5.0.3, acorn@^5.2.1, acorn@^5.5.0, acorn@^5.5.3:
-  version "5.7.3"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
 
 acorn@^6.0.1, acorn@^6.1.1:
   version "6.3.0"