diff --git a/advanced_topics/03_apparition_driver/Gemfile.lock b/advanced_topics/03_apparition_driver/Gemfile.lock
index 5dd45dc..a305214 100644
--- a/advanced_topics/03_apparition_driver/Gemfile.lock
+++ b/advanced_topics/03_apparition_driver/Gemfile.lock
@@ -9,8 +9,8 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     capybara (3.28.0)
       addressable
       mini_mime (>= 0.1.3)
@@ -27,7 +27,7 @@ GEM
     mini_portile2 (2.4.0)
     nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
-    public_suffix (3.1.1)
+    public_suffix (4.0.6)
     rack (2.0.7)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)