diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb
index 153168950b..9c9f26047f 100644
--- a/activesupport/lib/active_support/core_ext/time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/time/calculations.rb
@@ -116,7 +116,7 @@ def floor(precision = 0)
 
   # Restricted Ruby version due to a bug in `Time#ceil`
   # See https://bugs.ruby-lang.org/issues/17025 for more details
-  if RUBY_VERSION <= "2.7.1"
+  if RUBY_VERSION <= "2.8"
     remove_possible_method :ceil
     def ceil(precision = 0)
       change(nsec: 0) + subsec.ceil(precision)