diff --git a/Gemfile.lock b/Gemfile.lock
index 150c3c3..190ee98 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,7 +16,7 @@ GEM
     colored2 (3.1.2)
     gli (2.18.0)
     nanaimo (0.2.6)
-    rake (10.5.0)
+    rake (13.0.1)
     xcodeproj (1.7.0)
       CFPropertyList (>= 2.3.3, < 4.0)
       atomos (~> 0.1.3)
@@ -29,7 +29,7 @@ PLATFORMS
 
 DEPENDENCIES
   bundler (~> 1.17)
-  rake (~> 10.0)
+  rake (~> 13.0)
   toxic!
 
 BUNDLED WITH
diff --git a/toxic.gemspec b/toxic.gemspec
index 911c333..8abb98d 100644
--- a/toxic.gemspec
+++ b/toxic.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.17"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
 
   spec.add_dependency 'gli', '~> 2.18'
   spec.add_dependency 'xcodeproj', '~> 1.7.0'