diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a2ea64..d99c0cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,11 +1,15 @@
+# 5.0.0
+
+Bump oauth2 dependency to ~>2.0.
+
 # 4.0.0
 
-*   changed navigation link service to add missing links and return all if there are links already (before it would do nothing if there were any links already)
+- changed navigation link service to add missing links and return all if there are links already (before it would do nothing if there were any links already)
 
 # 3.1.0
 
-*   adds user_edtiable attribute to navigation links
+- adds user_edtiable attribute to navigation links
 
 # 3.0.0
 
-*   bumps rest-client to ~2.0.1, which results in CobotClient::ResourceNotFound to be renamed to CobotClient::NotFound (FrauBienenstich)
+- bumps rest-client to ~2.0.1, which results in CobotClient::ResourceNotFound to be renamed to CobotClient::NotFound (FrauBienenstich)
diff --git a/cobot_client.gemspec b/cobot_client.gemspec
index d05e7a7..d980652 100644
--- a/cobot_client.gemspec
+++ b/cobot_client.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |gem|
   gem.version       = CobotClient::VERSION
 
   gem.add_dependency 'virtus', '~>1.0'
-  gem.add_dependency 'oauth2', '~>1.0'
+  gem.add_dependency 'oauth2', '~>2.0'
   gem.add_dependency 'rest-client', '~>2.0.1'
   gem.add_dependency 'json', '~>2.0'
   gem.add_development_dependency 'rspec', '~>3.0'
diff --git a/lib/cobot_client/version.rb b/lib/cobot_client/version.rb
index 7e7a2ea..812f646 100644
--- a/lib/cobot_client/version.rb
+++ b/lib/cobot_client/version.rb
@@ -1,3 +1,3 @@
 module CobotClient
-  VERSION = '4.0.0'
+  VERSION = '5.0.0'
 end