diff --git a/Gemfile b/Gemfile
index d7d99ed..a3c0042 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,7 +11,7 @@ gem 'puma', '~> 3.0'
 gem 'sass-rails', '~> 5.0'
 gem 'simple_form', '~> 3.5'
 gem 'bootstrap-sass', '~> 3.3', '>= 3.3.6'
-gem 'devise', '~> 4.2'
+gem 'devise', '~> 4.7'
 gem 'paperclip', '~> 4.3', '>= 4.3.6'
 gem 'uglifier', '>= 1.3.0'
 gem 'coffee-rails', '~> 4.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index ff77988..ff0172b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -41,7 +41,7 @@ GEM
     arel (7.1.4)
     autoprefixer-rails (7.1.4.1)
       execjs
-    bcrypt (3.1.11)
+    bcrypt (3.1.13)
     bindex (0.5.0)
     bootstrap-sass (3.3.7)
       autoprefixer-rails (>= 5.2.1)
@@ -58,12 +58,12 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.0.5)
-    crass (1.0.2)
-    devise (4.3.0)
+    concurrent-ruby (1.1.5)
+    crass (1.0.5)
+    devise (4.7.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 4.1.0, < 5.2)
+      railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
     erubis (2.7.0)
@@ -71,7 +71,8 @@ GEM
     ffi (1.9.18)
     globalid (0.4.0)
       activesupport (>= 4.2.0)
-    i18n (0.8.6)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
@@ -82,22 +83,22 @@ GEM
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    loofah (2.1.1)
+    loofah (2.3.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.6)
       mime-types (>= 1.16, < 4)
-    method_source (0.9.0)
+    method_source (0.9.2)
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mimemagic (0.3.0)
-    mini_portile2 (2.3.0)
-    minitest (5.10.3)
+    mini_portile2 (2.4.0)
+    minitest (5.13.0)
     multi_json (1.12.2)
     nio4r (2.1.0)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.5)
+      mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
     paperclip (4.3.7)
       activemodel (>= 3.2.0)
@@ -106,7 +107,7 @@ GEM
       mime-types
       mimemagic (= 0.3.0)
     puma (3.10.0)
-    rack (2.0.3)
+    rack (2.0.7)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (5.0.6)
@@ -124,21 +125,21 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
     railties (5.0.6)
       actionpack (= 5.0.6)
       activesupport (= 5.0.6)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (12.1.0)
+    rake (13.0.0)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
-    responders (2.4.0)
-      actionpack (>= 4.2.0, < 5.3)
-      railties (>= 4.2.0, < 5.3)
+    responders (3.0.0)
+      actionpack (>= 5.0)
+      railties (>= 5.0)
     sass (3.5.1)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
@@ -166,18 +167,18 @@ GEM
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
     sqlite3 (1.3.13)
-    thor (0.20.0)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
     turbolinks (5.0.1)
       turbolinks-source (~> 5)
     turbolinks-source (5.0.3)
-    tzinfo (1.2.3)
+    tzinfo (1.2.5)
       thread_safe (~> 0.1)
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
-    warden (1.2.7)
-      rack (>= 1.0)
+    warden (1.2.8)
+      rack (>= 2.0.6)
     web-console (3.5.1)
       actionview (>= 5.0)
       activemodel (>= 5.0)
@@ -194,7 +195,7 @@ DEPENDENCIES
   bootstrap-sass (~> 3.3, >= 3.3.6)
   byebug
   coffee-rails (~> 4.2)
-  devise (~> 4.2)
+  devise (~> 4.7)
   jbuilder (~> 2.5)
   jquery-rails
   listen (~> 3.0.5)