diff --git a/Gemfile.lock b/Gemfile.lock
index 46b0d47..54cfaaa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     minitest (5.14.1)
-    rake (10.5.0)
+    rake (13.0.1)
 
 PLATFORMS
   ruby
@@ -16,7 +16,7 @@ DEPENDENCIES
   bundler (~> 1.17)
   deep_hash_struct!
   minitest (~> 5.0)
-  rake (~> 10.0)
+  rake (~> 13.0)
 
 BUNDLED WITH
    1.17.3
diff --git a/deep_hash_struct.gemspec b/deep_hash_struct.gemspec
index 6abdffa..8e3e56c 100644
--- a/deep_hash_struct.gemspec
+++ b/deep_hash_struct.gemspec
@@ -23,6 +23,6 @@ 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_development_dependency "minitest", "~> 5.0"
 end