diff --git a/Gemfile.lock b/Gemfile.lock
index 01c8094..765fc26 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
       rack
     rack-test (0.6.2)
       rack (>= 1.0)
-    rake (10.3.2)
+    rake (12.3.3)
     rb-fsevent (0.9.3)
     rb-inotify (0.9.0)
       ffi (>= 0.5.0)
@@ -83,6 +83,6 @@ DEPENDENCIES
   guard-rspec
   rack-reverse-proxy!
   rack-test (~> 0.6)
-  rake (~> 10.3)
+  rake (~> 12.3)
   rspec (~> 3.1)
   webmock (~> 1.18)
diff --git a/rack-reverse-proxy.gemspec b/rack-reverse-proxy.gemspec
index 26377a6..800347b 100644
--- a/rack-reverse-proxy.gemspec
+++ b/rack-reverse-proxy.gemspec
@@ -10,7 +10,7 @@ Gem::Specification.new do |s|
   s.summary       = 'A Simple Reverse Proxy for Rack'
 
   s.add_development_dependency "rspec", "~> 3.1"
-  s.add_development_dependency "rake", "~> 10.3"
+  s.add_development_dependency "rake", "~> 12.3"
   s.add_development_dependency "rack-test", "~> 0.6"
   s.add_development_dependency "webmock", "~> 1.18"
   s.add_development_dependency "guard-rspec"