diff --git a/examples/myapp/Gemfile.lock b/examples/myapp/Gemfile.lock
index 13f4fc8..07f24fe 100644
--- a/examples/myapp/Gemfile.lock
+++ b/examples/myapp/Gemfile.lock
@@ -49,8 +49,8 @@ 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)
@@ -178,7 +178,7 @@ GEM
       pry (~> 0.10)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
-    public_suffix (3.1.1)
+    public_suffix (4.0.6)
     puma (4.3.1)
       nio4r (~> 2.0)
     rack (2.0.8)