diff --git a/yarn.lock b/yarn.lock
index 769b85f..03bf1af 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -200,8 +200,8 @@ es6-promise@^4.0.5, es6-promise@^4.1.1:
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.4.tgz#dc4221c2b16518760bd8c39a52d8f356fc00ed29"
 
 extend@~3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
 
 extract-zip@^1.0.3:
   version "1.6.6"