diff --git a/Gemfile.lock b/Gemfile.lock
index e38da5a..70bf829 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -226,7 +226,7 @@ GEM
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.3.0)
       loofah (~> 2.3)
-    rake (10.5.0)
+    rake (13.0.1)
     recursive-open-struct (1.1.1)
     reline (0.1.4)
       io-console (~> 0.5)
@@ -295,7 +295,7 @@ PLATFORMS
 DEPENDENCIES
   bundler (~> 1.11)
   irbtools
-  rake (~> 10.0)
+  rake (~> 13.0)
   rspec (~> 3.0)
   zetabot!
 
diff --git a/Zeta.gemspec b/Zeta.gemspec
index 2b81623..5e9d061 100644
--- a/Zeta.gemspec
+++ b/Zeta.gemspec
@@ -28,7 +28,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.11"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency "irbtools"