diff --git a/Gemfile.lock b/Gemfile.lock
index 5bf264c..fe87291 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,8 +61,8 @@ 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)
     archive-zip (0.12.0)
       io-like (~> 0.3.0)
     arel (9.0.0)
@@ -167,7 +167,7 @@ GEM
       equatable (~> 0.5.0)
       tty-color (~> 0.4.0)
     popper_js (1.14.5)
-    public_suffix (3.0.3)
+    public_suffix (4.0.6)
     puma (3.12.0)
     rack (2.0.6)
     rack-test (1.1.0)