diff --git a/Gemfile b/Gemfile
index e80c9fd..997342c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -65,7 +65,7 @@ gem 'rsolr', '>= 1.0'
 gem 'bootstrap-sass', '~> 3.0'
 gem 'twitter-typeahead-rails', '0.11.1.pre.corejavascript'
 gem 'jquery-rails'
-gem 'devise'
+gem 'devise', '4.7.1'
 gem 'devise-guests', '~> 0.6'
 
 gem 'riiif', '~> 2.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 659bda4..b2ee7ca 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -160,7 +160,7 @@ GEM
     declarative-option (0.1.0)
     deprecation (1.0.0)
       activesupport
-    devise (4.7.0)
+    devise (4.7.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
       railties (>= 4.1.0)
@@ -765,7 +765,7 @@ DEPENDENCIES
   capybara (>= 2.15)
   coffee-rails (~> 4.2)
   database_cleaner
-  devise
+  devise (= 4.7.1)
   devise-guests (~> 0.6)
   fcrepo_wrapper
   hyrax (= 3.0.0.pre.beta1)