diff --git a/ChangeLog b/ChangeLog
index a78d4b1ee9..8e7b0a7159 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sun Apr 12 18:40:04 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* ext/json/json.gemspec: bump version to 1.8.2.
+	* ext/json/lib/json/version.rb: ditto.
+
 Sun Apr 12 18:12:07 2015  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
 
 	* ext/json/json.gemspec, lib/rdoc/rdoc.gemspec: added gemspec directly.
diff --git a/ext/json/json.gemspec b/ext/json/json.gemspec
index 627a64f783..d756dd78ed 100644
--- a/ext/json/json.gemspec
+++ b/ext/json/json.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name = "json"
-  s.version = "1.8.1"
+  s.version = "1.8.2"
   s.summary = "This json is bundled with Ruby"
   s.executables = []
   s.files = ["json.rb", "json/add/bigdecimal.rb", "json/add/complex.rb", "json/add/core.rb", "json/add/date.rb", "json/add/date_time.rb", "json/add/exception.rb", "json/add/ostruct.rb", "json/add/range.rb", "json/add/rational.rb", "json/add/regexp.rb", "json/add/struct.rb", "json/add/symbol.rb", "json/add/time.rb", "json/common.rb", "json/ext.rb", "json/ext/generator.bundle", "json/ext/parser.bundle", "json/generic_object.rb", "json/version.rb"]
diff --git a/ext/json/lib/json/version.rb b/ext/json/lib/json/version.rb
index 47cdcd607c..4549f5f213 100644
--- a/ext/json/lib/json/version.rb
+++ b/ext/json/lib/json/version.rb
@@ -1,6 +1,6 @@
 module JSON
   # JSON version
-  VERSION         = '1.8.1'
+  VERSION         = '1.8.2'
   VERSION_ARRAY   = VERSION.split(/\./).map { |x| x.to_i } # :nodoc:
   VERSION_MAJOR   = VERSION_ARRAY[0] # :nodoc:
   VERSION_MINOR   = VERSION_ARRAY[1] # :nodoc: