diff --git a/Gemfile b/Gemfile
index a6d5240..0f66a41 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,4 @@
 source 'https://rubygems.org'
 
 gem "mspec", "~> 1.9"
-gem "rake", "~> 10"
+gem "rake", "~> 12"
diff --git a/Gemfile.lock b/Gemfile.lock
index a964792..61ad66b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,14 +2,14 @@ GEM
   remote: https://rubygems.org/
   specs:
     mspec (1.9.1)
-    rake (10.5.0)
+    rake (12.3.3)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   mspec (~> 1.9)
-  rake (>= 12.3.3)
+  rake (~> 12)
 
 BUNDLED WITH
    1.11.2
diff --git a/rubinius-ast.gemspec b/rubinius-ast.gemspec
index 85aa1b7..2590e6a 100644
--- a/rubinius-ast.gemspec
+++ b/rubinius-ast.gemspec
@@ -16,5 +16,5 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.3"
-  spec.add_development_dependency "rake", ">= 12.3.3"
+  spec.add_development_dependency "rake", "~> 12.3"
 end
diff --git a/rubinius-compiler.gemspec b/rubinius-compiler.gemspec
index 5596029..2e4a6c8 100644
--- a/rubinius-compiler.gemspec
+++ b/rubinius-compiler.gemspec
@@ -16,5 +16,5 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.3"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
 end
diff --git a/rubinius-melbourne.gemspec b/rubinius-melbourne.gemspec
index da04c39..b772d1c 100644
--- a/rubinius-melbourne.gemspec
+++ b/rubinius-melbourne.gemspec
@@ -18,5 +18,5 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "redcard", "~> 1.0"
   spec.add_development_dependency "mspec", "~> 1.5"
-  spec.add_development_dependency "rake",  "~> 10.0"
+  spec.add_development_dependency "rake",  "~> 12.3"
 end
diff --git a/rubinius-processor.gemspec b/rubinius-processor.gemspec
index 69e9db6..628c709 100644
--- a/rubinius-processor.gemspec
+++ b/rubinius-processor.gemspec
@@ -16,5 +16,5 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.3"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
 end
diff --git a/rubinius-toolset.gemspec b/rubinius-toolset.gemspec
index a0e8c08..da61b7e 100644
--- a/rubinius-toolset.gemspec
+++ b/rubinius-toolset.gemspec
@@ -23,7 +23,7 @@ the Rubinius code tools as are suitable for that language.
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.3"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
   spec.add_development_dependency "mspec", "~> 1.5"
   spec.add_development_dependency "rubinius-bridge", "~> 1.0"
 end