diff --git a/Gemfile.lock b/Gemfile.lock
index 12e3fff..15a34fc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     colorator (1.1.0)
     concurrent-ruby (1.0.5)
     em-websocket (0.5.1)
@@ -53,7 +53,7 @@ GEM
     mercenary (0.3.6)
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.2)
+    public_suffix (5.0.0)
     rack (1.6.8)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
@@ -77,7 +77,6 @@ DEPENDENCIES
   jekyll (~> 3.8.3)
   jekyll-assets
   jekyll-feed (~> 0.6)
-  sass
   tzinfo-data
 
 BUNDLED WITH