diff --git a/Gemfile b/Gemfile
index f43a1b7d9..03b684afc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -105,6 +105,7 @@ group :test do
   gem "simplecov", require: false
   gem "timecop", "~> 0.9.4"
   gem "webmock", require: false
+  gem "test-prof", "~> 1.0"
 end
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
diff --git a/Gemfile.lock b/Gemfile.lock
index 5c8f48017..c4fd77e80 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -449,6 +449,7 @@ GEM
     stimulus-rails (1.3.3)
       railties (>= 6.0.0)
     strscan (3.1.0)
+    test-prof (1.3.3)
     thor (1.3.1)
     timecop (0.9.8)
     timeout (0.4.1)
@@ -550,6 +551,7 @@ DEPENDENCIES
   sidekiq-cron
   simplecov
   stimulus-rails
+  test-prof (~> 1.0)
   timecop (~> 0.9.4)
   tzinfo-data
   uk_postcode