diff --git a/Gemfile.lock b/Gemfile.lock
index baa5809420aa..e23d7450d929 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -24,7 +24,7 @@ GEM
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
-    ffi (1.11.1)
+    ffi (1.15.5)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
     i18n (1.6.0)
@@ -50,7 +50,7 @@ GEM
     jekyll-paginate (1.1.0)
     jekyll-redirect-from (0.15.0)
       jekyll (>= 3.3, < 5.0)
-    jekyll-sass-converter (2.0.0)
+    jekyll-sass-converter (2.2.0)
       sassc (> 2.0.1, < 3.0)
     jekyll-sitemap (1.3.1)
       jekyll (>= 3.7, < 5.0)
@@ -90,7 +90,7 @@ GEM
     sass (3.4.25)
     sass-globbing (1.1.5)
       sass (>= 3.1)
-    sassc (2.2.0)
+    sassc (2.4.0)
       ffi (~> 1.9)
     sinatra (2.0.7)
       mustermann (~> 1.0)