diff --git a/Gemfile b/Gemfile
index 39d989b..554179a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -18,7 +18,7 @@ gem 'data-confirm-modal',  '1.6.2'
 gem 'jquery-rails',        '~> 4.3'
 gem 'jquery-ui-rails',     '~> 6.0'
 
-gem 'devise',                 '~> 4.5'
+gem 'devise',                 '~> 4.7'
 gem 'omniauth-memair',        '0.0.5'
 
 gem 'memair', '~> 0.1.3'
diff --git a/Gemfile.lock b/Gemfile.lock
index 650d3f7..372406c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,7 +49,7 @@ GEM
     arel (9.0.0)
     autoprefixer-rails (9.5.1)
       execjs
-    bcrypt (3.1.12)
+    bcrypt (3.1.13)
     bindex (0.7.0)
     bootsnap (1.4.4)
       msgpack (~> 1.0)
@@ -84,13 +84,13 @@ GEM
     crass (1.0.5)
     data-confirm-modal (1.6.2)
       railties (>= 3.0)
-    devise (4.6.2)
+    devise (4.7.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 4.1.0, < 6.0)
+      railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
-    erubi (1.8.0)
+    erubi (1.9.0)
     execjs (2.7.0)
     faraday (0.17.0)
       multipart-post (>= 1.2, < 3)
@@ -101,7 +101,7 @@ GEM
     httparty (0.17.1)
       mime-types (~> 3.0)
       multi_xml (>= 0.5.2)
-    i18n (1.6.0)
+    i18n (1.7.0)
       concurrent-ruby (~> 1.0)
     io-like (0.3.0)
     jbuilder (2.8.0)
@@ -134,7 +134,7 @@ GEM
     mimemagic (0.3.3)
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
-    minitest (5.11.3)
+    minitest (5.13.0)
     msgpack (1.2.10)
     multi_json (1.13.1)
     multi_xml (0.6.0)
@@ -185,22 +185,22 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.4)
-      loofah (~> 2.2, >= 2.2.2)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
     railties (5.2.3)
       actionpack (= 5.2.3)
       activesupport (= 5.2.3)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
-    rake (12.3.2)
+    rake (12.3.3)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
     regexp_parser (1.4.0)
-    responders (2.4.1)
-      actionpack (>= 4.2.0, < 6.0)
-      railties (>= 4.2.0, < 6.0)
+    responders (3.0.0)
+      actionpack (>= 5.0)
+      railties (>= 5.0)
     ruby_dep (1.5.0)
     rubyzip (1.2.2)
     sass (3.7.4)
@@ -276,7 +276,7 @@ DEPENDENCIES
   chromedriver-helper
   coffee-rails (~> 4.2)
   data-confirm-modal (= 1.6.2)
-  devise (~> 4.5)
+  devise (~> 4.7)
   jbuilder (~> 2.5)
   jquery-rails (~> 4.3)
   jquery-ui-rails (~> 6.0)