diff --git a/yarn.lock b/yarn.lock
index d4051ab..f052d71 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -324,10 +324,10 @@ async-settle@^1.0.0:
     async-done "^1.2.2"
 
 async@^2.1.2, async@^2.1.4:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.0.tgz#61a29abb6fcc026fea77e56d1c6ec53a795951f4"
+  version "2.6.4"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.4.tgz#706b7ff6084664cd7eae713f6f965433b5504221"
   dependencies:
-    lodash "^4.14.0"
+    lodash "^4.17.14"
 
 asynckit@^0.4.0:
   version "0.4.0"
@@ -3665,7 +3665,7 @@ lodash.values@~2.4.1:
   dependencies:
     lodash.keys "~2.4.1"
 
-lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.4:
+lodash@^4.13.1, lodash@^4.17.14, lodash@^4.17.4:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"