diff --git a/Gemfile.lock b/Gemfile.lock
index dcaec7f..bb4676a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,8 +38,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     arel (8.0.0)
     bindex (0.8.1)
     builder (3.2.3)
@@ -88,7 +88,7 @@ GEM
     nio4r (2.4.0)
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
-    public_suffix (3.1.1)
+    public_suffix (4.0.6)
     puma (3.12.1)
     rack (2.0.7)
     rack-test (1.1.0)