diff --git a/Gemfile b/Gemfile
index dcf7ae0f7..9e0a9318b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,7 +11,7 @@ gem "rspec", "~> 3.1.0", :group => :development
 gem "logstash-devutils", "~> 0", :group => :development
 gem "benchmark-ips", :group => :development
 gem "octokit", "3.8.0", :group => :build
-gem "stud", "~> 0.0.19", :group => :build
+gem "stud", "~> 0.0.21", :group => :build
 gem "fpm", "~> 1.3.3", :group => :build
 gem "rubyzip", "~> 1.1.7", :group => :build
 gem "gems", "~> 0.8.3", :group => :build
diff --git a/Gemfile.jruby-1.9.lock b/Gemfile.jruby-1.9.lock
index 776c83bf3..34c6e5625 100644
--- a/Gemfile.jruby-1.9.lock
+++ b/Gemfile.jruby-1.9.lock
@@ -114,7 +114,7 @@ GEM
     slop (3.6.0)
     spoon (0.0.4)
       ffi
-    stud (0.0.19)
+    stud (0.0.21)
     term-ansicolor (1.3.0)
       tins (~> 1.0)
     thor (0.19.1)
@@ -142,4 +142,4 @@ DEPENDENCIES
   rspec (~> 3.1.0)
   rubyzip (~> 1.1.7)
   simplecov
-  stud (~> 0.0.19)
+  stud (~> 0.0.21)