diff --git a/Gemfile.lock b/Gemfile.lock
index 31fee76..4e71370 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,7 +13,8 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.3.5)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     directory_watcher (1.5.1)
     haml (4.0.2)
       tilt
@@ -26,6 +27,7 @@ GEM
       multi_json (>= 1.3.6)
     loquacious (1.9.1)
     multi_json (1.8.2)
+    public_suffix (5.0.0)
     rake (13.0.1)
     sass (3.2.7)
     tilt (1.3.7)