diff --git a/README.textile b/README.textile
index 937aa59..ccbf1bd 100644
--- a/README.textile
+++ b/README.textile
@@ -2,9 +2,9 @@ h1. The Closure Compiler (as a Ruby Gem)
 
 The *closure-compiler* gem is a svelte wrapper around the "Google Closure Compiler":https://developers.google.com/closure/compiler/ for JavaScript compression.
 
-Latest Version: *"1.1.14":https://rubygems.org/gems/closure-compiler*
+Latest Version: *"1.1.15":https://rubygems.org/gems/closure-compiler*
 
-The Closure Compiler's *2018-05-06* JAR-file is included with the gem.
+The Closure Compiler's *2019-07-09* JAR-file is included with the gem.
 
 h2. Installation
 
diff --git a/closure-compiler.gemspec b/closure-compiler.gemspec
index 9b76e0b..ed4094a 100644
--- a/closure-compiler.gemspec
+++ b/closure-compiler.gemspec
@@ -3,7 +3,7 @@ require File.join(File.dirname(__FILE__), 'lib', 'closure-compiler')
 Gem::Specification.new do |s|
   s.name      = 'closure-compiler'
   s.version   = Closure::VERSION
-  s.date      = '2018-05-31'
+  s.date      = '2019-07-24'
   s.license   = 'Apache-2.0'
 
   s.homepage    = "http://github.com/documentcloud/closure-compiler/"
diff --git a/lib/closure-compiler-20180506.jar b/lib/closure-compiler-v20190709.jar
old mode 100755
new mode 100644
similarity index 54%
rename from lib/closure-compiler-20180506.jar
rename to lib/closure-compiler-v20190709.jar
index 8f190da..a02a48c
Binary files a/lib/closure-compiler-20180506.jar and b/lib/closure-compiler-v20190709.jar differ
diff --git a/lib/closure-compiler.rb b/lib/closure-compiler.rb
index d74f360..643ad58 100644
--- a/lib/closure-compiler.rb
+++ b/lib/closure-compiler.rb
@@ -1,8 +1,8 @@
 module Closure
 
-  VERSION           = "1.1.14"
+  VERSION           = "1.1.15"
 
-  COMPILER_VERSION  = "20180506"
+  COMPILER_VERSION  = "v20190709"
 
   JAVA_COMMAND      = 'java'