diff --git a/Gemfile.lock b/Gemfile.lock
index 409d1f5..be23e78 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -24,7 +24,7 @@ GEM
       forwardable-extended (~> 2.5)
     facets (3.1.0)
     fastimage (2.1.1)
-    ffi (1.9.18)
+    ffi (1.9.23)
     forwardable-extended (2.6.0)
     jekyll (3.5.2)
       addressable (~> 2.4)
@@ -86,13 +86,13 @@ GEM
     public_suffix (2.0.5)
     rack (1.6.8)
     rake (12.3.1)
-    rb-fsevent (0.10.2)
+    rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
     redcarpet (3.4.0)
     rouge (1.11.1)
     safe_yaml (1.0.4)
-    sass (3.5.1)
+    sass (3.5.6)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)