diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index c9607df28c174e5f92e4ff7dbbc1f4a5c248f060..4f0c1890be98c77985cf75014af8759629922546 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -2,7 +2,7 @@
 
 require_relative "../../migration/join_table"
 require "active_support/core_ext/string/access"
-require "digest"
+require "digest/sha2"
 
 module ActiveRecord
   module ConnectionAdapters # :nodoc:
diff --git a/activesupport/lib/active_support/security_utils.rb b/activesupport/lib/active_support/security_utils.rb
index 51870559ecd0d10586603bf33de53a00b326f619..b6b31ef140ff204f828ff53a057dc77be061b426 100644
--- a/activesupport/lib/active_support/security_utils.rb
+++ b/activesupport/lib/active_support/security_utils.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require "digest"
+require "digest/sha2"
 
 module ActiveSupport
   module SecurityUtils