diff --git a/Gemfile.lock b/Gemfile.lock
index b5b140b..0f05a40 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,8 +49,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (9.0.0)
     builder (3.2.3)
     concurrent-ruby (1.1.5)
@@ -83,7 +83,7 @@ GEM
     nio4r (2.3.1)
     nokogiri (1.10.2)
       mini_portile2 (~> 2.4.0)
-    public_suffix (3.0.3)
+    public_suffix (5.0.0)
     rack (2.0.6)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)