diff --git a/Gemfile.lock b/Gemfile.lock
index e693a26..aa57f80 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 (9.6.5)
+    autoprefixer-rails (9.7.1)
       execjs
     bcrypt (3.1.13)
     bindex (0.8.1)
-    bootstrap-sass (3.3.7)
+    bootstrap-sass (3.4.1)
       autoprefixer-rails (>= 5.2.1)
-      sass (>= 3.3.4)
+      sassc (>= 2.0.0)
     bootstrap_form (4.3.0)
       actionpack (>= 5.0)
       activemodel (>= 5.0)
@@ -193,6 +193,8 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
+    sassc (2.2.1)
+      ffi (~> 1.9)
     selenium-webdriver (3.142.6)
       childprocess (>= 0.5, < 4.0)
       rubyzip (>= 1.2.2)
@@ -235,7 +237,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  bootstrap-sass (~> 3.3.6)
+  bootstrap-sass (~> 3.4.1)
   bootstrap_form
   byebug
   capybara (>= 2.15)