diff --git a/yarn.lock b/yarn.lock
index 42fa3a1..cf9076c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1080,8 +1080,8 @@ accept@^3.0.2:
     hoek "6.x.x"
 
 acorn@^6.2.0:
-  version "6.2.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.2.0.tgz#67f0da2fc339d6cfb5d6fb244fd449f33cd8bbe3"
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.4.1.tgz#531e58ba3f51b9dacb9a6646ca4debf5b14ca474"
 
 agent-base@^4.3.0:
   version "4.3.0"