diff --git a/tasks/gem.rake b/tasks/gem.rake
index fde1b0345..c345500c2 100644
--- a/tasks/gem.rake
+++ b/tasks/gem.rake
@@ -18,8 +18,9 @@ namespace :gem do
     s.extra_rdoc_files = %w( README )
     s.rdoc_options.concat ['--main',  'README']
 
-    s.add_runtime_dependency('oauth', '>= 0.4.1')
-    s.add_runtime_dependency('addressable', '>= 2.2.0')
+    s.add_runtime_dependency('signet', '>= 0.1.1')
+    s.add_runtime_dependency('addressable', '>= 2.2.1')
+    s.add_runtime_dependency('httpadapter', '>= 0.2.0')
     s.add_runtime_dependency('json', '>= 1.1.9')
 
     s.add_development_dependency('rake', '>= 0.7.3')