diff --git a/Gemfile.lock b/Gemfile.lock
index 00b3151..719427a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.6)
+      public_suffix (>= 2.0.2, < 6.0)
     colorator (1.1.0)
     commonmarker (0.17.13)
       ruby-enum (~> 0.5)
@@ -10,7 +10,9 @@ GEM
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
+    eventmachine (1.2.7)
     eventmachine (1.2.7-x64-mingw32)
+    ffi (1.11.3)
     ffi (1.11.3-x64-mingw32)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
@@ -60,7 +62,7 @@ GEM
       jekyll-seo-tag (~> 2.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.1)
+    public_suffix (5.0.4)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -68,6 +70,8 @@ GEM
     ruby-enum (0.7.2)
       i18n
     safe_yaml (1.0.5)
+    sassc (2.2.1)
+      ffi (~> 1.9)
     sassc (2.2.1-x64-mingw32)
       ffi (~> 1.9)
     terminal-table (1.8.0)
@@ -82,6 +86,7 @@ GEM
 
 PLATFORMS
   x64-mingw32
+  x86_64-linux
 
 DEPENDENCIES
   jekyll (~> 4.0.0)