diff --git a/Gemfile b/Gemfile
index ed26ccc..7864f2d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,4 +22,5 @@ group :development do
   gem "rspec"
   gem "standard"
   gem "minitest"
+  gem "rake"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index c7ecbc7..221e593 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,6 +48,7 @@ GEM
     rackup (2.2.1)
       rack (>= 3)
     rainbow (3.1.1)
+    rake (13.2.1)
     rbs (3.8.1)
       logger
     regexp_parser (2.10.0)
@@ -135,6 +136,7 @@ DEPENDENCIES
   puma
   rack-test
   rackup
+  rake
   rbs
   rspec
   rubocop