diff --git a/Gemfile.lock b/Gemfile.lock
index fcdd9bf..38e7941 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,8 +8,8 @@ PATH
 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)
     coderay (1.1.3)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
@@ -28,7 +28,7 @@ GEM
     pry (0.13.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    public_suffix (4.0.5)
+    public_suffix (5.0.0)
     rake (10.5.0)
     rest-client (2.0.2)
       http-cookie (>= 1.0.2, < 2.0)