diff --git a/Gemfile b/Gemfile
index 4c166a7..fcf7a4c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -31,7 +31,7 @@ gem 'yui-compressor'
 
 group :test, :development do
   gem 'pry'
-  gem 'rack-test', '~> 2.1'
+  gem 'rack-test', '~> 2.2'
   gem 'rubocop', require: false
   gem 'solargraph', require: false
   gem 'test-unit', '~> 3.6', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 824a412..9b3ae17 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -101,7 +101,7 @@ GEM
       racc
     pg (1.5.9)
     power_assert (2.0.4)
-    pry (0.15.0)
+    pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
     puma (6.5.0)
@@ -114,7 +114,7 @@ GEM
       rack (>= 3.0.0, < 4)
     rack-session (2.0.0)
       rack (>= 3.0.0)
-    rack-test (2.1.0)
+    rack-test (2.2.0)
       rack (>= 1.3)
     rackup (2.2.1)
       rack (>= 3)
@@ -233,7 +233,7 @@ DEPENDENCIES
   pry
   puma
   rack (~> 3.1)
-  rack-test (~> 2.1)
+  rack-test (~> 2.2)
   rackup (~> 2.2)
   rake
   rubocop