diff --git a/actionpack/lib/action_dispatch/journey/formatter.rb b/actionpack/lib/action_dispatch/journey/formatter.rb
index a4861719f8..36c041f254 100644
--- a/actionpack/lib/action_dispatch/journey/formatter.rb
+++ b/actionpack/lib/action_dispatch/journey/formatter.rb
@@ -146,12 +146,12 @@ module ActionDispatch
                 missing_keys << key
               end
             when RegexCaseComparator
-              unless RegexCaseComparator::DEFAULT_REGEX === parts[key]
+              unless RegexCaseComparator::DEFAULT_REGEX.match?(parts[key])
                 missing_keys ||= []
                 missing_keys << key
               end
             else
-              unless /\A#{tests[key]}\Z/ === parts[key]
+              unless /\A#{tests[key]}\Z/.match?(parts[key])
                 missing_keys ||= []
                 missing_keys << key
               end
diff --git a/actionpack/lib/action_dispatch/journey/gtg/transition_table.rb b/actionpack/lib/action_dispatch/journey/gtg/transition_table.rb
index 5003e92f43..c8598bc166 100644
--- a/actionpack/lib/action_dispatch/journey/gtg/transition_table.rb
+++ b/actionpack/lib/action_dispatch/journey/gtg/transition_table.rb
@@ -48,7 +48,7 @@ module ActionDispatch
 
           t.map { |s|
             if states = @regexp_states[s]
-              regexps.concat states.map { |re, v| re === a ? v : nil }
+              regexps.concat states.map { |re, v| re.match?(a) ? v : nil }
             end
 
             if states = @string_states[s]
diff --git a/activerecord/lib/arel/visitors/oracle.rb b/activerecord/lib/arel/visitors/oracle.rb
index a0a74d365c..e8bf24a449 100644
--- a/activerecord/lib/arel/visitors/oracle.rb
+++ b/activerecord/lib/arel/visitors/oracle.rb
@@ -104,7 +104,7 @@ module Arel # :nodoc: all
           return o if o.orders.empty?
           return o unless o.cores.any? do |core|
             core.projections.any? do |projection|
-              /FIRST_VALUE/ === projection
+              /FIRST_VALUE/.match?(projection)
             end
           end
           # Previous version with join and split broke ORDER BY clause
diff --git a/activerecord/test/cases/test_case.rb b/activerecord/test/cases/test_case.rb
index 1b8bad32a4..04f425945d 100644
--- a/activerecord/test/cases/test_case.rb
+++ b/activerecord/test/cases/test_case.rb
@@ -42,7 +42,7 @@ module ActiveRecord
     ensure
       failed_patterns = []
       patterns_to_match.each do |pattern|
-        failed_patterns << pattern unless SQLCounter.log_all.any? { |sql| pattern === sql }
+        failed_patterns << pattern unless SQLCounter.log_all.any? { |sql| pattern.match?(sql) }
       end
       assert failed_patterns.empty?, "Query pattern(s) #{failed_patterns.map(&:inspect).join(', ')} not found.#{SQLCounter.log.size == 0 ? '' : "\nQueries:\n#{SQLCounter.log.join("\n")}"}"
     end