diff --git a/website/Gemfile.lock b/website/Gemfile.lock
index f584f9cb6d6d..9fa2acd6e2af 100644
--- a/website/Gemfile.lock
+++ b/website/Gemfile.lock
@@ -7,11 +7,11 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    autoprefixer-rails (6.5.1.1)
+    autoprefixer-rails (9.8.6.1)
       execjs
-    bootstrap-sass (3.3.7)
+    bootstrap-sass (3.4.1)
       autoprefixer-rails (>= 5.2.1)
-      sass (>= 3.3.4)
+      sassc (>= 2.0.0)
     builder (3.2.2)
     capybara (2.4.4)
       mime-types (>= 1.16)
@@ -121,7 +121,9 @@ GEM
       ffi (>= 0.5.0)
     redcarpet (3.3.4)
     rouge (2.0.6)
-    sass (3.4.22)
+    sass (3.4.25)
+    sassc (2.4.0)
+      ffi (~> 1.9)
     sprockets (2.12.4)
       hike (~> 1.2)
       multi_json (~> 1.0)