diff --git a/Gemfile.lock b/Gemfile.lock
index 1f6c154..0680f15 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GEM
     json (2.1.0)
     json (2.1.0-java)
     multi_json (1.13.1)
-    rake (10.5.0)
+    rake (13.0.6)
     rspec (3.7.0)
       rspec-core (~> 3.7.0)
       rspec-expectations (~> 3.7.0)
@@ -34,7 +34,7 @@ DEPENDENCIES
   bundler (~> 1.16)
   json (~> 2.0)
   json-sequence!
-  rake (~> 10.0)
+  rake (~> 13.0)
   rspec (~> 3.0)
 
 BUNDLED WITH
diff --git a/json-sequence.gemspec b/json-sequence.gemspec
index 2ee5c0b..342f069 100644
--- a/json-sequence.gemspec
+++ b/json-sequence.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "multi_json", "~> 1.13"
 
   spec.add_development_dependency "bundler", "~> 1.16"
-  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 "json", "~> 2.0"
 end