diff --git a/Gemfile b/Gemfile
index 8a6898d..b7b7fe4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -50,6 +50,6 @@ gem 'sendgrid-ruby'
 
 gem 'devise'
 
-gem 'bootstrap', '~> 4.0.0.beta2'
+gem 'bootstrap', '~> 4.3.1'
 
 gem 'jquery-rails'
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index b32652e..9857c86 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -39,14 +39,14 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     arel (8.0.0)
-    autoprefixer-rails (7.1.6)
+    autoprefixer-rails (9.7.0)
       execjs
     bcrypt (3.1.11)
     bindex (0.5.0)
-    bootstrap (4.0.0.beta2.1)
-      autoprefixer-rails (>= 6.0.3)
-      popper_js (>= 1.12.3, < 2)
-      sass (>= 3.5.2)
+    bootstrap (4.3.1)
+      autoprefixer-rails (>= 9.1.0)
+      popper_js (>= 1.14.3, < 2)
+      sassc-rails (>= 2.0.0)
     builder (3.2.3)
     byebug (9.1.0)
     concurrent-ruby (1.0.5)
@@ -58,7 +58,7 @@ GEM
       warden (~> 1.2.3)
     erubi (1.6.1)
     execjs (2.7.0)
-    ffi (1.9.18)
+    ffi (1.11.1)
     globalid (0.4.0)
       activesupport (>= 4.2.0)
     i18n (0.8.6)
@@ -90,7 +90,7 @@ GEM
       mini_portile2 (~> 2.2.0)
     orm_adapter (0.5.0)
     pg (0.21.0)
-    popper_js (1.12.5)
+    popper_js (1.14.5)
     puma (3.10.0)
     rack (2.0.5)
     rack-protection (2.0.0)
@@ -121,19 +121,22 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (12.1.0)
-    rb-fsevent (0.10.2)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
     responders (2.4.0)
       actionpack (>= 4.2.0, < 5.3)
       railties (>= 4.2.0, < 5.3)
     ruby_dep (1.5.0)
     ruby_http_client (3.2.0)
-    sass (3.5.3)
-      sass-listen (~> 4.0.0)
-    sass-listen (4.0.0)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
+    sassc (2.2.1)
+      ffi (~> 1.9)
+    sassc-rails (2.1.2)
+      railties (>= 4.0.0)
+      sassc (>= 2.0)
+      sprockets (> 3.0)
+      sprockets-rails
+      tilt
     sendgrid-ruby (5.1.0)
       ruby_http_client (~> 3.2)
       sinatra (>= 1.4.7, < 3)
@@ -179,7 +182,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  bootstrap (~> 4.0.0.beta2)
+  bootstrap (~> 4.3.1)
   byebug
   devise
   jbuilder (~> 2.5)