diff --git a/Gemfile b/Gemfile
index ef3bcfd..fbe7b29 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,4 +11,4 @@ gem 'middleman-router'
 gem 'rouge', '~> 1.10.1'
 gem 'redcarpet', '~> 3.5.1'
 gem 'sassc'
-gem 'rack', '~> 2.0.8'
+gem 'rack', '~> 2.2.6'
diff --git a/Gemfile.lock b/Gemfile.lock
index 62481e0..3830655 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -101,7 +101,7 @@ GEM
       activesupport (>= 3.1)
     parallel (1.21.0)
     public_suffix (4.0.6)
-    rack (2.0.9)
+    rack (2.2.6.4)
     rack-livereload (0.3.17)
       rack
     rake (13.0.6)
@@ -137,7 +137,7 @@ DEPENDENCIES
   middleman-router
   middleman-sprockets (~> 4.0.0.rc)
   middleman-syntax (~> 2.1.0)
-  rack (~> 2.0.8)
+  rack (~> 2.2.6)
   redcarpet (~> 3.5.1)
   rouge (~> 1.10.1)
   sassc