diff --git a/Gemfile b/Gemfile
index 5d8cf87..6405373 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,7 +23,7 @@ gem 'sentry-ruby'
 gem 'uglifier'
 
 group :production do
-  gem 'connection_pool', '< 3'   # 3.x requires keyword args; pin to 2.x for Rails 7.2.3
+  gem 'connection_pool', '< 4'   # 3.x requires keyword args; pin to 2.x for Rails 7.2.3
   gem 'pg'
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index b66710b..1c99f75 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -114,7 +114,7 @@ GEM
     climate_control (1.2.0)
     colorator (1.1.0)
     concurrent-ruby (1.3.6)
-    connection_pool (2.5.5)
+    connection_pool (3.0.2)
     crack (1.0.1)
       bigdecimal
       rexml
@@ -455,7 +455,7 @@ DEPENDENCIES
   byebug
   capybara
   climate_control
-  connection_pool (< 3)
+  connection_pool (< 4)
   devise
   dotenv-rails
   faraday_middleware-aws-sigv4