diff --git a/src/ruby/bin/math.rb b/src/ruby/bin/math.rb
old mode 100644
new mode 100755
diff --git a/src/ruby/bin/math_services.rb b/src/ruby/bin/math_services.rb
old mode 100644
new mode 100755
diff --git a/src/ruby/grpc.gemspec b/src/ruby/grpc.gemspec
index ffd084dc9128e7cc091291edb4cb0d55a0af5217..f615945b797ce7bc175d50938de920fac5a0dba4 100755
--- a/src/ruby/grpc.gemspec
+++ b/src/ruby/grpc.gemspec
@@ -19,11 +19,11 @@ Gem::Specification.new do |s|
   s.require_paths = ['lib']
   s.platform      = Gem::Platform::RUBY
 
-  s.add_dependency 'xray'
-  s.add_dependency 'logging', '~> 1.8'
   s.add_dependency 'google-protobuf', '~> 3.0.0alpha.1.1'
-  s.add_dependency 'signet', '~> 0.5.1'
+  s.add_dependency 'logging', '~> 1.8'
   s.add_dependency 'minitest', '~> 5.4'  # reqd for interop tests
+  s.add_dependency 'signet', '~> 0.6.0'
+  s.add_dependency 'xray', '~> 1.1'
 
   s.add_development_dependency 'bundler', '~> 1.7'
   s.add_development_dependency 'rake', '~> 10.0'