diff --git a/examples/calculator/Gemfile b/examples/calculator/Gemfile
index f0e95fa..f9ebf25 100644
--- a/examples/calculator/Gemfile
+++ b/examples/calculator/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
 gem 'helix_runtime', path: '../../ruby'
-gem 'rake', '~> 10.0'
+gem 'rake', '~> 12.0'
 gem 'rspec', '~> 3.4'
 gem 'colorize'
diff --git a/examples/console/Gemfile b/examples/console/Gemfile
index f0e95fa..f9ebf25 100644
--- a/examples/console/Gemfile
+++ b/examples/console/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
 gem 'helix_runtime', path: '../../ruby'
-gem 'rake', '~> 10.0'
+gem 'rake', '~> 12.0'
 gem 'rspec', '~> 3.4'
 gem 'colorize'
diff --git a/examples/docopt/Gemfile b/examples/docopt/Gemfile
index f0e95fa..f9ebf25 100644
--- a/examples/docopt/Gemfile
+++ b/examples/docopt/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
 gem 'helix_runtime', path: '../../ruby'
-gem 'rake', '~> 10.0'
+gem 'rake', '~> 12.0'
 gem 'rspec', '~> 3.4'
 gem 'colorize'
diff --git a/examples/duration/Gemfile b/examples/duration/Gemfile
index ec0c933..fc76705 100644
--- a/examples/duration/Gemfile
+++ b/examples/duration/Gemfile
@@ -3,4 +3,4 @@ source 'https://rubygems.org'
 gemspec
 
 gem 'helix_runtime', path: '../../ruby'
-gem 'activesupport', '5.1.0.beta1'
+gem 'activesupport'
diff --git a/examples/duration/duration.gemspec b/examples/duration/duration.gemspec
index 01f2fed..4d9c401 100644
--- a/examples/duration/duration.gemspec
+++ b/examples/duration/duration.gemspec
@@ -26,6 +26,6 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_runtime_dependency "helix_runtime"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.0"
   spec.add_development_dependency "minitest", "~> 5.0"
 end
diff --git a/examples/game_of_life/Gemfile b/examples/game_of_life/Gemfile
index 36c5451..71e48c7 100644
--- a/examples/game_of_life/Gemfile
+++ b/examples/game_of_life/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
 
 gem 'helix_runtime', path: '../../ruby'
-gem 'rake', '~> 10.0'
+gem 'rake', '~> 12.0'
 gem 'rspec', '~> 3.4'
diff --git a/examples/geometry/Gemfile b/examples/geometry/Gemfile
index 36c5451..71e48c7 100644
--- a/examples/geometry/Gemfile
+++ b/examples/geometry/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
 
 gem 'helix_runtime', path: '../../ruby'
-gem 'rake', '~> 10.0'
+gem 'rake', '~> 12.0'
 gem 'rspec', '~> 3.4'
diff --git a/examples/json_builder/Gemfile b/examples/json_builder/Gemfile
index 36c5451..71e48c7 100644
--- a/examples/json_builder/Gemfile
+++ b/examples/json_builder/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
 
 gem 'helix_runtime', path: '../../ruby'
-gem 'rake', '~> 10.0'
+gem 'rake', '~> 12.0'
 gem 'rspec', '~> 3.4'
diff --git a/examples/membership/Gemfile b/examples/membership/Gemfile
index 36c5451..71e48c7 100644
--- a/examples/membership/Gemfile
+++ b/examples/membership/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
 
 gem 'helix_runtime', path: '../../ruby'
-gem 'rake', '~> 10.0'
+gem 'rake', '~> 12.0'
 gem 'rspec', '~> 3.4'
diff --git a/examples/text_transform/Gemfile b/examples/text_transform/Gemfile
index 36c5451..71e48c7 100644
--- a/examples/text_transform/Gemfile
+++ b/examples/text_transform/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
 
 gem 'helix_runtime', path: '../../ruby'
-gem 'rake', '~> 10.0'
+gem 'rake', '~> 12.0'
 gem 'rspec', '~> 3.4'
diff --git a/examples/turbo_blank/turbo_blank.gemspec b/examples/turbo_blank/turbo_blank.gemspec
index 0879940..35ee233 100644
--- a/examples/turbo_blank/turbo_blank.gemspec
+++ b/examples/turbo_blank/turbo_blank.gemspec
@@ -27,6 +27,6 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_runtime_dependency "helix_runtime"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.0"
   spec.add_development_dependency "minitest", "~> 5.0"
 end
diff --git a/examples/unit/Gemfile b/examples/unit/Gemfile
index 91b3aee..92e5cef 100644
--- a/examples/unit/Gemfile
+++ b/examples/unit/Gemfile
@@ -1,4 +1,4 @@
 source 'https://rubygems.org'
 
 gem 'helix_runtime', path: '../../ruby'
-gem 'rake', '~> 10.0'
+gem 'rake', '~> 12.0'
diff --git a/ruby/helix_runtime.gemspec b/ruby/helix_runtime.gemspec
index 17a199f..f882d26 100644
--- a/ruby/helix_runtime.gemspec
+++ b/ruby/helix_runtime.gemspec
@@ -30,5 +30,5 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "bundler", "~> 2.0"
   spec.add_development_dependency "rspec", "~> 3.4"
-  spec.add_development_dependency "rake-compiler", "~> 0.9.7"
+  spec.add_development_dependency "rake-compiler", "~> 1.0.7"
 end