diff --git a/Gemfile.lock b/Gemfile.lock
index dfc88ae..c67086d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,8 +20,8 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     byebug (10.0.2)
     capybara (3.12.0)
       addressable
@@ -42,7 +42,7 @@ GEM
     mustermann (1.0.3)
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
-    public_suffix (3.0.3)
+    public_suffix (4.0.7)
     rack (2.0.6)
     rack-protection (2.0.4)
       rack