diff --git a/yarn.lock b/yarn.lock
index 4ec4dca..792cb26 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -806,8 +806,8 @@ acorn-jsx@^5.1.0:
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.1.0.tgz#294adb71b57398b0680015f0a38c563ee1db5384"
 
 acorn@^6.2.1:
-  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"
 
 acorn@^7.1.0:
   version "7.1.0"