diff --git a/Gemfile.lock b/Gemfile.lock
index 6e51761..44d7c10 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 (1.1.4)
     em-websocket (0.5.1)
@@ -48,8 +48,7 @@ GEM
       jekyll-seo-tag (~> 2.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.3)
-    rake (12.3.3)
+    public_suffix (5.0.0)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -68,7 +67,6 @@ PLATFORMS
 DEPENDENCIES
   jekyll (~> 3.8.5)
   jekyll-feed (~> 0.6)
-
   minima (~> 2.0)
   tzinfo-data