diff --git a/spec/dummy-app/Gemfile.lock b/spec/dummy-app/Gemfile.lock
index 38d7daa..c79a9b0 100644
--- a/spec/dummy-app/Gemfile.lock
+++ b/spec/dummy-app/Gemfile.lock
@@ -52,8 +52,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (9.0.0)
     bcrypt (3.1.16)
     bindex (0.8.1)
@@ -125,7 +125,7 @@ GEM
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
-    public_suffix (4.0.6)
+    public_suffix (5.0.0)
     puma (4.3.6)
       nio4r (~> 2.0)
     rack (2.2.3)