diff --git a/Gemfile b/Gemfile
index 0c71aa1..fd88a8c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 gem 'nokogiri'
-gem 'rack', '~> 3.1.4'
+gem 'rack', '~> 3.1.5'
 gem 'rspec'
 gem 'jekyll'
 gem "webrick", "~> 1.8"
diff --git a/Gemfile.lock b/Gemfile.lock
index 24e0984..afd4c4e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -236,7 +236,7 @@ GEM
       forwardable-extended (~> 2.6)
     public_suffix (5.0.5)
     racc (1.8.0)
-    rack (3.1.4)
+    rack (3.1.5)
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -293,7 +293,7 @@ DEPENDENCIES
   jekyll
   minima
   nokogiri
-  rack (~> 3.1.4)
+  rack (~> 3.1.5)
   rspec
   webrick (~> 1.8)