diff --git a/Gemfile.lock b/Gemfile.lock
index a4dbf2c..bc5f8bf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -56,8 +56,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.2, >= 2.2.2)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     administrate (0.14.0)
       actionpack (>= 4.2)
       actionview (>= 4.2)
@@ -153,7 +153,7 @@ GEM
     parser (2.7.2.0)
       ast (~> 2.4.1)
     pg (1.2.3)
-    public_suffix (4.0.6)
+    public_suffix (5.0.0)
     puma (5.0.4)
       nio4r (~> 2.0)
     racc (1.5.2)