diff --git a/yarn.lock b/yarn.lock
index 7e5abe3..8c244c8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1689,13 +1689,9 @@ expand-range@^1.8.1:
   dependencies:
     fill-range "^2.1.0"
 
-extend@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
-
-extend@~3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.0.tgz#5a474353b9f3353ddd8176dfd37b91c83a46f1d4"
+extend@^3.0.1, extend@~3.0.0:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
 
 extglob@^0.3.1:
   version "0.3.2"
@@ -2423,14 +2419,12 @@ marked@0.3.9:
   version "0.3.9"
   resolved "https://registry.yarnpkg.com/marked/-/marked-0.3.9.tgz#54ce6a57e720c3ac6098374ec625fcbcc97ff290"
 
-
 mem@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
   dependencies:
     mimic-fn "^1.0.0"
 
-
 memory-fs@^0.4.0, memory-fs@~0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.4.1.tgz#3a9a20b8462523e447cfbc7e8bb80ed667bfc552"