diff --git a/Gemfile.lock b/Gemfile.lock
index a4399b0..6a172d2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,8 +11,8 @@ 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)
     coveralls (0.7.1)
       multi_json (~> 1.3)
       rest-client
@@ -39,7 +39,7 @@ GEM
     netrc (0.11.0)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
-    public_suffix (4.0.5)
+    public_suffix (5.0.0)
     rake (13.0.1)
     rest-client (2.1.0)
       http-accept (>= 1.7.0, < 2.0)