diff --git a/Gemfile.lock b/Gemfile.lock
index 08380be..0e9442e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,8 +11,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     akami (1.3.1)
       gyoku (>= 0.4.0)
       nokogiri
@@ -78,7 +78,7 @@ GEM
       method_source (~> 0.9.0)
     pry-nav (0.3.0)
       pry (>= 0.9.10, < 0.13.0)
-    public_suffix (4.0.5)
+    public_suffix (5.0.0)
     rack (2.2.3)
     rainbow (3.0.0)
     rake (13.0.1)