diff --git a/Gemfile.lock b/Gemfile.lock
index 6ee6e62..529ad32 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,7 +25,8 @@ GEM
     mocha (0.9.8)
       rake
     nokogiri (1.4.7)
-    rake (0.8.7)
+    nokogiri (1.4.7-x86-mingw32)
+    rake (13.0.1)
     rspec (2.6.0)
       rspec-core (~> 2.6.0)
       rspec-expectations (~> 2.6.0)
@@ -45,5 +46,5 @@ DEPENDENCIES
   melomel!
   minitest (~> 1.7.0)
   mocha (~> 0.9.8)
-  rake (~> 0.8.7)
+  rake (~> 13.0.1)
   rspec (~> 2.6.0)
diff --git a/melomel.gemspec b/melomel.gemspec
index 9063620..9ca3e36 100644
--- a/melomel.gemspec
+++ b/melomel.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
 
   s.add_dependency('nokogiri', '~> 1.4.3')
 
-  s.add_development_dependency('rake', '~> 0.8.7')
+  s.add_development_dependency('rake', '~> 13.0.1')
   s.add_development_dependency('minitest', '~> 1.7.0')
   s.add_development_dependency('mocha', '~> 0.9.8')
   s.add_development_dependency('cucumber', '~> 0.10.0')