diff --git a/Gemfile b/Gemfile
index 661a300..607a686 100644
--- a/Gemfile
+++ b/Gemfile
@@ -21,7 +21,7 @@ gem 'unicorn', '~> 5.7'
 
 group :development do
   gem 'byebug', '~> 11.1'
-  gem 'rack-test', '~> 1.1'
+  gem 'rack-test', '~> 2.0'
   gem 'rake', '~> 13.0'
   gem 'rspec', '~> 3.11'
   gem 'simplecov', '~> 0.21.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index a5553ed..c198451 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -42,8 +42,8 @@ GEM
     rack (2.2.4)
     rack-protection (2.2.1)
       rack
-    rack-test (1.1.0)
-      rack (>= 1.0, < 3)
+    rack-test (2.0.2)
+      rack (>= 1.3)
     raindrops (0.19.1)
     rake (13.0.6)
     redis (4.6.0)
@@ -117,7 +117,7 @@ DEPENDENCIES
   mail (~> 2.7)
   mime-types (~> 3.4)
   nokogiri (~> 1.13)
-  rack-test (~> 1.1)
+  rack-test (~> 2.0)
   rake (~> 13.0)
   redis-namespace (~> 1.8)
   rest-client (~> 2.1)