diff --git a/lib/redmine/ciphering.rb b/lib/redmine/ciphering.rb
index d5ceb0c6c..469d3b9e6 100644
--- a/lib/redmine/ciphering.rb
+++ b/lib/redmine/ciphering.rb
@@ -74,7 +74,7 @@ module Redmine
           all.each do |object|
             clear = object.send(attribute)
             object.send "#{attribute}=", clear
-            raise(ActiveRecord::Rollback) unless object.save(:validation => false)
+            raise(ActiveRecord::Rollback) unless object.save(validate: false)
           end
         end ? true : false
       end
@@ -84,7 +84,7 @@ module Redmine
           all.each do |object|
             clear = object.send(attribute)
             object.send :write_attribute, attribute, clear
-            raise(ActiveRecord::Rollback) unless object.save(:validation => false)
+            raise(ActiveRecord::Rollback) unless object.save(validate: false)
           end
         end ? true : false
       end
diff --git a/test/unit/lib/redmine/ciphering_test.rb b/test/unit/lib/redmine/ciphering_test.rb
index d28a5d49d..3a87d5b67 100644
--- a/test/unit/lib/redmine/ciphering_test.rb
+++ b/test/unit/lib/redmine/ciphering_test.rb
@@ -20,6 +20,7 @@
 require File.expand_path('../../../../test_helper', __FILE__)
 
 class Redmine::CipheringTest < ActiveSupport::TestCase
+  fixtures :auth_sources
 
   def test_password_should_be_encrypted
     Redmine::Configuration.with 'database_cipher_key' => 'secret' do
@@ -106,4 +107,12 @@ class Redmine::CipheringTest < ActiveSupport::TestCase
       assert_equal 'bar', r.read_attribute(:password)
     end
   end
+
+  def test_encrypt_all_and_decrypt_all_should_skip_validation
+    auth_source = auth_sources(:auth_sources_001)
+    # validator checks if AuthSource#host is present
+    auth_source.update_column(:host, nil)
+    assert AuthSource.encrypt_all(:account_password)
+    assert AuthSource.decrypt_all(:account_password)
+  end
 end