diff --git a/yarn.lock b/yarn.lock
index 5465a1f..e63418a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -105,8 +105,8 @@ acorn-jsx@^5.0.0:
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.0.2.tgz#84b68ea44b373c4f8686023a551f61a21b7c4a4f"
 
 acorn@^6.0.2:
-  version "6.3.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.3.0.tgz#0087509119ffa4fc0a0041d1e93a417e68cb856e"
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.4.1.tgz#531e58ba3f51b9dacb9a6646ca4debf5b14ca474"
 
 ajv-keywords@^3.0.0:
   version "3.4.1"