diff --git a/Gemfile.d/other_stuff.rb b/Gemfile.d/other_stuff.rb
index b64e2f5b959..4100ca4f33a 100644
--- a/Gemfile.d/other_stuff.rb
+++ b/Gemfile.d/other_stuff.rb
@@ -16,7 +16,7 @@ end
 gem 'encrypted_cookie_store-instructure', '1.1.8', :require => 'encrypted_cookie_store'
 gem 'active_model_serializers', '0.9.0alpha1',
   :github => 'rails-api/active_model_serializers', :ref => '61882e1e4127facfe92e49057aec71edbe981829'
-gem 'authlogic', '3.3.0'
+gem 'authlogic', '3.4.2'
 gem 'active_model-better_errors', '1.6.7', :require => 'active_model/better_errors'
 gem 'dynamic_form', '1.1.4'
 gem 'rails-patch-json-encode', '0.0.1'
diff --git a/app/models/pseudonym.rb b/app/models/pseudonym.rb
index 575e825a897..69467c041a8 100644
--- a/app/models/pseudonym.rb
+++ b/app/models/pseudonym.rb
@@ -67,6 +67,7 @@ class Pseudonym < ActiveRecord::Base
     config.perishable_token_valid_for = 30.minutes
     config.validates_length_of_login_field_options = {:within => 1..MAX_UNIQUE_ID_LENGTH}
     config.validates_uniqueness_of_login_field_options = { :case_sensitive => false, :scope => [:account_id, :workflow_state], :if => lambda { |p| (p.unique_id_changed? || p.workflow_state_changed?) && p.active? } }
+    config.crypto_provider = Authlogic::CryptoProviders::Sha512
   end
 
   attr_writer :require_password