diff --git a/Gemfile.lock b/Gemfile.lock
index c3b48c4..fac09df 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)
     colorize (0.8.1)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
@@ -18,7 +18,7 @@ GEM
     mini_portile2 (2.4.0)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
-    public_suffix (4.0.4)
+    public_suffix (5.0.0)
     rake (13.0.1)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)