diff --git a/Gemfile.lock b/Gemfile.lock
index b7d698f..2b44da7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -96,7 +96,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (12.3.2)
+    rake (13.0.1)
     rspec (3.7.0)
       rspec-core (~> 3.7.0)
       rspec-expectations (~> 3.7.0)
@@ -141,7 +141,7 @@ DEPENDENCIES
   bundler (~> 2.0)
   dahlia_data_models!
   database_cleaner
-  rake (~> 12.3)
+  rake (~> 13.0)
   rspec (~> 3.0)
   rspec-rails
   sqlite3
diff --git a/dahlia_data_models.gemspec b/dahlia_data_models.gemspec
index e6df4a1..427df16 100644
--- a/dahlia_data_models.gemspec
+++ b/dahlia_data_models.gemspec
@@ -39,7 +39,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "awesome_nested_set", "~> 3.1"
 
   spec.add_development_dependency "bundler", "~> 2.0"
-  spec.add_development_dependency "rake", "~> 12.3"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency "rspec-rails"
   spec.add_development_dependency "database_cleaner"