diff --git a/Gemfile.lock b/Gemfile.lock
index 543ff79..4f91947 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,8 +10,8 @@ GIT
 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)
     breasal (0.0.1)
     domain_name (0.5.24)
       unf (>= 0.0.5, < 1.0.0)
@@ -28,7 +28,7 @@ GEM
     mini_portile2 (2.3.0)
     nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
-    public_suffix (3.0.2)
+    public_suffix (4.0.7)
     sqlite3 (1.3.10)
     sqlite_magic (0.0.3)
       sqlite3