diff --git a/Gemfile.lock b/Gemfile.lock
index 85647b8..400d1d3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,8 +7,8 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     byebug (11.0.1)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
@@ -22,7 +22,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.0331)
     multi_xml (0.6.0)
-    public_suffix (3.1.1)
+    public_suffix (5.0.0)
     rake (10.5.0)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)