diff --git a/Formula/yarn.rb b/Formula/yarn.rb
index de05575e0b..599c9d5827 100644
--- a/Formula/yarn.rb
+++ b/Formula/yarn.rb
@@ -3,13 +3,13 @@ require "language/node"
 class Yarn < Formula
   desc "Javascript package manager"
   homepage "https://yarnpkg.com/"
-  url "https://yarnpkg.com/downloads/0.17.10/yarn-v0.17.10.tar.gz"
-  sha256 "592140a9d387a892935ca49ee93a8207b95073e2b732693987420dd1a7606672"
+  url "https://yarnpkg.com/downloads/0.18.1/yarn-v0.18.1.tar.gz"
+  sha256 "7d16699c8690ef145e1732004266fb82a32b0c06210a43c624986d100537b5a8"
   head "https://github.com/yarnpkg/yarn.git"
 
   devel do
-    url "https://yarnpkg.com/downloads/0.18.0/yarn-v0.18.0.tar.gz"
-    sha256 "8fb1843d2a1283972ff5fead9d6c9f9002de793ecec6dfec7abec908403ecd19"
+    url "https://yarnpkg.com/downloads/0.18.1/yarn-v0.18.1.tar.gz"
+    sha256 "7d16699c8690ef145e1732004266fb82a32b0c06210a43c624986d100537b5a8"
   end
 
   bottle do