diff --git a/CHANGELOG.md b/CHANGELOG.md
index a901e7a..ea42cbe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Change Log
 
+## [1.8.0](https://github.com/skywinder/github-changelog-generator/tree/1.8.0) (2015-08-24)
+[Full Changelog](https://github.com/skywinder/github-changelog-generator/compare/1.7.0...1.8.0)
+
+**Implemented enhancements:**
+
+- Generate change log since/due specific tag [\#254](https://github.com/skywinder/github-changelog-generator/issues/254)
+
+**Merged pull requests:**
+
+- Add `--due-tag` option [\#265](https://github.com/skywinder/github-changelog-generator/pull/265) ([skywinder](https://github.com/skywinder))
+- Add release\_url to rake task options [\#264](https://github.com/skywinder/github-changelog-generator/pull/264) ([raphink](https://github.com/raphink))
+- Add a rake task [\#260](https://github.com/skywinder/github-changelog-generator/pull/260) ([raphink](https://github.com/raphink))
+- Add release\_url option [\#259](https://github.com/skywinder/github-changelog-generator/pull/259) ([raphink](https://github.com/raphink))
+- Add --base option [\#258](https://github.com/skywinder/github-changelog-generator/pull/258) ([raphink](https://github.com/raphink))
+- Add --since-tag [\#257](https://github.com/skywinder/github-changelog-generator/pull/257) ([raphink](https://github.com/raphink))
+
 ## [1.7.0](https://github.com/skywinder/github-changelog-generator/tree/1.7.0) (2015-07-16)
 [Full Changelog](https://github.com/skywinder/github-changelog-generator/compare/1.6.2...1.7.0)
 
diff --git a/Gemfile.lock b/Gemfile.lock
index fc32fc7..1dd602d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    github_changelog_generator (1.7.0)
+    github_changelog_generator (1.8.0)
       colorize (~> 0.7)
       github_api (~> 0.12)
 
@@ -29,13 +29,13 @@ GEM
       unf (>= 0.0.5, < 1.0.0)
     faraday (0.9.1)
       multipart-post (>= 1.2, < 3)
-    github_api (0.12.3)
+    github_api (0.12.4)
       addressable (~> 2.3)
       descendants_tracker (~> 0.0.4)
       faraday (~> 0.8, < 0.10)
-      hashie (>= 3.3)
+      hashie (>= 3.4)
       multi_json (>= 1.7.5, < 2.0)
-      nokogiri (~> 1.6.3)
+      nokogiri (~> 1.6.6)
       oauth2
     hashie (3.4.2)
     http-cookie (1.0.2)
@@ -112,3 +112,6 @@ DEPENDENCIES
   rspec (~> 3.2)
   rubocop (~> 0.31)
   simplecov (~> 0.10)
+
+BUNDLED WITH
+   1.10.6