diff --git a/Gemfile b/Gemfile
index afd918b..5b2ea71 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,7 @@ gem 'puma', '~> 3.12'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5.0'
 
-gem 'bootstrap', '~> 4.0'
+gem 'bootstrap', '~> 4.4', '>= 4.4.1'
 
 gem 'will_paginate', '~> 3.3.0'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index df69465..9347776 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -41,13 +41,13 @@ GEM
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     arel (8.0.0)
-    autoprefixer-rails (9.7.6)
-      execjs
+    autoprefixer-rails (10.4.13.0)
+      execjs (~> 2)
     bcrypt (3.1.13)
     bindex (0.8.1)
-    bootstrap (4.4.1)
+    bootstrap (4.6.2)
       autoprefixer-rails (>= 9.1.0)
-      popper_js (>= 1.14.3, < 2)
+      popper_js (>= 1.16.1, < 2)
       sassc-rails (>= 2.0.0)
     builder (3.2.4)
     byebug (11.0.1)
@@ -68,18 +68,18 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.6)
+    concurrent-ruby (1.2.2)
     countupjs-rails (1.3.2.3)
     crass (1.0.6)
-    erubi (1.9.0)
-    execjs (2.7.0)
-    ffi (1.12.2)
-    ffi (1.12.2-x86-mingw32)
+    erubi (1.12.0)
+    execjs (2.8.1)
+    ffi (1.15.5)
+    ffi (1.15.5-x86-mingw32)
     font-awesome-rails (4.7.0.5)
       railties (>= 3.2, < 6.1)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    i18n (1.8.2)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     jbuilder (2.10.0)
       activesupport (>= 5.0.0)
@@ -87,28 +87,30 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    loofah (2.5.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
     method_source (1.0.0)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
-    minitest (5.14.0)
+    mini_portile2 (2.8.1)
+    minitest (5.18.0)
     mysql2 (0.5.3)
     mysql2 (0.5.3-x86-mingw32)
     nio4r (2.5.2)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.9-x86-mingw32)
-      mini_portile2 (~> 2.4.0)
-    popper_js (1.16.0)
+    nokogiri (1.14.2)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    nokogiri (1.14.2-x86-mingw32)
+      racc (~> 1.4)
+    popper_js (1.16.1)
     public_suffix (4.0.4)
     puma (3.12.6)
-    rack (2.2.3)
-    rack-test (1.1.0)
-      rack (>= 1.0, < 3)
+    racc (1.6.2)
+    rack (2.2.6.4)
+    rack-test (2.0.2)
+      rack (>= 1.3)
     rails (5.1.7)
       actioncable (= 5.1.7)
       actionmailer (= 5.1.7)
@@ -124,15 +126,15 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.3.0)
-      loofah (~> 2.3)
+    rails-html-sanitizer (1.5.0)
+      loofah (~> 2.19, >= 2.19.1)
     railties (5.1.7)
       actionpack (= 5.1.7)
       activesupport (= 5.1.7)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (13.0.1)
+    rake (13.0.6)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -150,9 +152,7 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    sassc (2.2.1)
-      ffi (~> 1.9)
-    sassc (2.2.1-x86-mingw32)
+    sassc (2.4.0)
       ffi (~> 1.9)
     sassc-rails (2.1.2)
       railties (>= 4.0.0)
@@ -166,18 +166,18 @@ GEM
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.2.1)
+    sprockets-rails (3.2.2)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
     sqlite3 (1.4.2)
-    thor (1.0.1)
+    thor (1.2.1)
     thread_safe (0.3.6)
-    tilt (2.0.10)
+    tilt (2.1.0)
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.7)
+    tzinfo (1.2.11)
       thread_safe (~> 0.1)
     tzinfo-data (1.2019.1)
       tzinfo (>= 1.0.0)
@@ -203,7 +203,7 @@ PLATFORMS
 
 DEPENDENCIES
   bcrypt (~> 3.1.7)
-  bootstrap (~> 4.0)
+  bootstrap (~> 4.4, >= 4.4.1)
   byebug
   capybara (>= 2.15)
   cocoon (~> 1.2, >= 1.2.9)