diff --git a/Gemfile.lock b/Gemfile.lock
index 595ec45..f7cfd38 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     chronic (0.10.2)
-    rake (10.5.0)
+    rake (13.0.3)
 
 PLATFORMS
   ruby
@@ -16,7 +16,7 @@ PLATFORMS
 DEPENDENCIES
   bundler (~> 1.17)
   lynx!
-  rake (~> 10.0)
+  rake (~> 13.0)
 
 BUNDLED WITH
    1.17.2
diff --git a/lynx.gemspec b/lynx.gemspec
index d90673e..2812d20 100644
--- a/lynx.gemspec
+++ b/lynx.gemspec
@@ -37,5 +37,5 @@ Gem::Specification.new do |spec|
 
   spec.add_runtime_dependency 'chronic', '~> 0.10.2'
   spec.add_development_dependency "bundler", "~> 1.17"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
 end