diff --git a/Gemfile.lock b/Gemfile.lock
index ff1e114..1f12c51 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     adsf (1.4.1)
       rack (>= 1.0.0, < 3.0.0)
     builder (3.2.3)
@@ -32,7 +32,7 @@ GEM
       slow_enumerator_tools (~> 1.0)
       tomlrb (~> 1.2)
     parallel (1.12.1)
-    public_suffix (3.0.3)
+    public_suffix (5.0.0)
     rack (2.0.5)
     rake (12.3.1)
     ref (2.0.0)