diff --git a/Gemfile b/Gemfile
index 6768820f..e0629c21 100644
--- a/Gemfile
+++ b/Gemfile
@@ -54,7 +54,7 @@ end
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 
 # Bootstrap gems
-gem 'bootstrap', '~> 4.1.3'
+gem 'bootstrap', '~> 4.3.1'
 gem 'jquery-rails'
 
 # rspec gem to write tests
diff --git a/Gemfile.lock b/Gemfile.lock
index 981fd1cc..4eefd029 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -58,16 +58,16 @@ GEM
       zeitwerk (~> 2.1, >= 2.1.8)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
-    autoprefixer-rails (9.6.1.1)
+    autoprefixer-rails (9.7.1)
       execjs
     bcrypt (3.1.12)
     bindex (0.8.1)
     bootsnap (1.4.5)
       msgpack (~> 1.0)
-    bootstrap (4.1.3)
-      autoprefixer-rails (>= 6.0.3)
-      popper_js (>= 1.12.9, < 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 (11.0.1)
     capybara (3.29.0)
@@ -189,6 +189,14 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
+    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
     selenium-webdriver (3.142.4)
       childprocess (>= 0.5, < 3.0)
       rubyzip (~> 1.2, >= 1.2.2)
@@ -238,7 +246,7 @@ PLATFORMS
 DEPENDENCIES
   bcrypt (~> 3.1.7)
   bootsnap (>= 1.4.2)
-  bootstrap (~> 4.1.3)
+  bootstrap (~> 4.3.1)
   byebug
   capybara (>= 2.15)
   jbuilder (~> 2.7)