diff --git a/Gemfile.lock b/Gemfile.lock
index b4d2197..bc542fc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -41,7 +41,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rake (10.4.2)
+    rake (13.0.1)
     ruby-progressbar (1.7.5)
     safe_yaml (1.0.4)
     slop (3.6.0)
@@ -63,6 +63,6 @@ DEPENDENCIES
   minitest
   minitest-reporters
   pry
-  rake (~> 10.0)
+  rake (~> 13.0)
   trimark!
   webmock
diff --git a/trimark.gemspec b/trimark.gemspec
index 5c2c51d..10cbd55 100644
--- a/trimark.gemspec
+++ b/trimark.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.9.5"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "minitest"
   spec.add_development_dependency "minitest-reporters"
   spec.add_development_dependency "webmock"