diff --git a/Gemfile b/Gemfile
index e4582da..2a4388d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,6 +9,7 @@ gem "activemodel", RAILS_GEMS_VERSION
 gem "activesupport", RAILS_GEMS_VERSION
 gem "railties", RAILS_GEMS_VERSION
 
+gem "bootsnap", require: false
 gem "govuk_app_config"
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index 979a994..2526fb2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -24,6 +24,8 @@ GEM
     addressable (2.8.5)
       public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.2)
+    bootsnap (1.16.0)
+      msgpack (~> 1.2)
     brakeman (6.0.1)
     builder (3.2.4)
     capybara (3.39.2)
@@ -81,6 +83,7 @@ GEM
     method_source (1.0.0)
     mini_mime (1.1.5)
     minitest (5.19.0)
+    msgpack (1.7.2)
     nio4r (2.5.9)
     nokogiri (1.15.4-aarch64-linux)
       racc (~> 1.4)
@@ -401,6 +404,7 @@ DEPENDENCIES
   actionpack (= 7.0.7.2)
   activemodel (= 7.0.7.2)
   activesupport (= 7.0.7.2)
+  bootsnap
   brakeman
   debug
   govuk_app_config
diff --git a/config/boot.rb b/config/boot.rb
index 2820116..997563c 100644
--- a/config/boot.rb
+++ b/config/boot.rb
@@ -1,3 +1,4 @@
 ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
 
 require "bundler/setup" # Set up gems listed in the Gemfile.
+require "bootsnap/setup"