diff --git a/Formula/sourcekitten.rb b/Formula/sourcekitten.rb
index 271f2f3d7e..a8f91719d1 100644
--- a/Formula/sourcekitten.rb
+++ b/Formula/sourcekitten.rb
@@ -2,8 +2,8 @@ class Sourcekitten < Formula
   desc "Framework and command-line tool for interacting with SourceKit"
   homepage "https://github.com/jpsim/SourceKitten"
   url "https://github.com/jpsim/SourceKitten.git",
-      :tag => "0.18.4",
-      :revision => "71e8297e5d95118588f8aa8e1de892762346dc9d"
+      :tag => "0.19.1",
+      :revision => "e06eb730499439ae32c5fbb6f72809ebec2371fd"
   head "https://github.com/jpsim/SourceKitten.git"
 
   bottle do
@@ -13,7 +13,7 @@ class Sourcekitten < Formula
   end
 
   depends_on :xcode => ["6.0", :run]
-  depends_on :xcode => ["8.3", :build]
+  depends_on :xcode => ["9.0", :build]
 
   def install
     system "make", "prefix_install", "PREFIX=#{prefix}", "TEMPORARY_FOLDER=#{buildpath}/SourceKitten.dst"