diff --git a/Gemfile.lock b/Gemfile.lock
index 5811ed7..a93f282 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 (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     colorator (1.1.0)
     concurrent-ruby (1.1.8)
     deep_merge (1.2.1)
@@ -56,7 +56,7 @@ GEM
       jekyll-seo-tag (~> 2.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.6)
+    public_suffix (5.0.0)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -71,6 +71,7 @@ GEM
 
 PLATFORMS
   x86_64-darwin-18
+  x86_64-linux
 
 DEPENDENCIES
   jekyll (~> 4.2.0)