diff --git a/Gemfile.lock b/Gemfile.lock
index 4230ec3..8ea50d5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -27,8 +27,8 @@ 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)
     backports (3.15.0)
     builder (3.2.3)
     concurrent-ruby (1.1.5)
@@ -83,7 +83,7 @@ GEM
     multipart-post (2.1.1)
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
-    public_suffix (3.1.1)
+    public_suffix (5.0.0)
     rack (2.0.8)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)