diff --git a/Gemfile.lock b/Gemfile.lock
index ad55a68..560a48d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,8 +64,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.1, >= 2.1.8)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     bindex (0.8.1)
     bootsnap (1.4.4)
       msgpack (~> 1.0)
@@ -131,7 +131,7 @@ GEM
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
     pg (1.1.4)
-    public_suffix (3.1.1)
+    public_suffix (4.0.6)
     puma (3.12.1)
     rack (2.0.7)
     rack-cors (1.0.3)