diff --git a/Gemfile.lock b/Gemfile.lock
index c119888..5fee87b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,8 +11,8 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     ast (2.4.0)
     byebug (11.0.1)
     coderay (1.1.2)
@@ -56,7 +56,7 @@ GEM
     pry-byebug (3.7.0)
       byebug (~> 11.0)
       pry (~> 0.10)
-    public_suffix (3.1.1)
+    public_suffix (4.0.6)
     rainbow (3.0.0)
     rake (12.3.2)
     rspec (3.8.0)