diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
index 33f68d0b97fcee7d3e406e6939d73d1f74641844..1bea16ebcc0ebac6c0736c4ee15f264a07482d89 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
@@ -298,7 +298,7 @@ def initialize(pool, frequency)
         def run
           return unless frequency
           Thread.new(frequency, pool) { |t, p|
-            while true
+            loop do
               sleep t
               p.reap
             end
@@ -618,7 +618,7 @@ def attempt_to_checkout_all_existing_connections(raise_on_acquisition_timeout =
         timeout_time      = Time.now + (@checkout_timeout * 2)
 
         @available.with_a_bias_for(Thread.current) do
-          while true
+          loop do
             synchronize do
               return if collected_conns.size == @connections.size && @now_connecting == 0
               remaining_timeout = timeout_time - Time.now