diff --git a/Gemfile.lock b/Gemfile.lock
index a1417dc..eb4e7e8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,15 +6,15 @@ PATH
 GEM
   remote: http://rubygems.org/
   specs:
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.9.0)
+      public_suffix (>= 2.0.2, < 8.0)
     crack (0.4.1)
       safe_yaml (~> 0.9.0)
     diff-lcs (1.2.5)
     docile (1.1.0)
     lockfile (2.1.0)
     multi_json (1.8.2)
-    public_suffix (4.0.6)
+    public_suffix (7.0.5)
     rake (12.3.3)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)