diff --git a/Gemfile b/Gemfile
index e37b1db..9d5deae 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ gem "govuk_app_config", "~> 9.14.3"
 gem "nokogiri", "1.16.7"
 gem "optic14n", "2.1.0" # Ideally version should be synced with Transition
 gem "pg"
-gem "rack", "~> 3.1.7"
+gem "rack", "~> 3.1.8"
 gem "rake", "13.2.1"
 
 group :development do
diff --git a/Gemfile.lock b/Gemfile.lock
index b198c5f..b9bb7d2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -334,7 +334,7 @@ GEM
     puma (6.4.3)
       nio4r (~> 2.0)
     racc (1.8.1)
-    rack (3.1.7)
+    rack (3.1.8)
     rack-proxy (0.7.7)
       rack
     rack-session (2.0.0)
@@ -464,7 +464,7 @@ DEPENDENCIES
   optic14n (= 2.1.0)
   pg
   pry
-  rack (~> 3.1.7)
+  rack (~> 3.1.8)
   rack-test (= 2.1.0)
   rake (= 13.2.1)
   rspec