diff --git a/Gemfile b/Gemfile
index afa1bec..8b6686b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,4 @@
 source 'http://rubygems.org'
 
-gem 'rake', '10.1.0'
+gem 'rake', '12.3.3'
 gem 'minitest', '~> 4.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 36a269e..6331a2a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,11 +2,11 @@ GEM
   remote: http://rubygems.org/
   specs:
     minitest (4.7.5)
-    rake (10.1.0)
+    rake (12.3.3)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   minitest (~> 4.0)
-  rake (= 10.1.0)
+  rake (= 12.3.3)