diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0933e937a..e7c384bea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Xcodeproj Changelog
 
-## Master
+## 0.21.1
 
 ##### Bug Fixes
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 3e35ee44c..b66c26b58 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    xcodeproj (0.21.0)
+    xcodeproj (0.21.1)
       activesupport (>= 3)
       colored (~> 1.2)
 
diff --git a/lib/xcodeproj/gem_version.rb b/lib/xcodeproj/gem_version.rb
index 46010d008..61f9d2009 100644
--- a/lib/xcodeproj/gem_version.rb
+++ b/lib/xcodeproj/gem_version.rb
@@ -1,5 +1,5 @@
 module Xcodeproj
   # The version of the xcodeproj gem.
   #
-  VERSION = '0.21.0' unless defined? Xcodeproj::VERSION
+  VERSION = '0.21.1' unless defined? Xcodeproj::VERSION
 end